Area

Year five have been learning about area in Mathematics. Area is the size a surface takes up. Click on the links below to practise your skills.

What else do you know about area?

How do you find the area of a square, rectangle or triangle?

What units of measurement are used?

Jenny Eather’s Maths dictionary may be a great help – click here.

Filed under Mathematics

40 responses to “Area”

1. Nathan

Dear 5 White and Miss Azzopardi,

I enjoyed learning about area! To find the area of a square you just multiply it’s side by side, to find the area of a rectangle you multiply the base by the height and to find the area of a triangle you half the base and then multiply the height. The units of measurement used are: mm sq, cm sq, m sq, ha, km sq. What did you learn about area?

Sincerely,
Nathan

2. Kong

Dear 5 White and Miss Azzopardi,

To find the area of a triangle you need to multiply the base and height then divide by 2 because triangles are half of squares! When multiplying a rectangle you just multiply the length and the width, same as the square but a bit differently, you look at 1 side then multiply it by 4 to find the area of a square! The measurements used in area are m sq, mm sq, cm sq, km sq and ha (hectares).

• Miss Ashley Azzopardi

Hi Kong,

Well done! However, are you sure you multiply a side of a square by 4 to find its area?

Kind regards,
Miss Azzopardi

• Natalie

Dear Kong,
Great Job!, but in finding the area of a square you don’t multiply the length four times just because there are 4 sides. All you need to do is multiply the length by the length.

Sincerely,
Natalie

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4. Natalie

Dear 5W and Miss Azzopardi,
Learning about area brings up new formulas! Now some people get confused about area and perimeter, but I’ll tell you the difference. Area is the size a surface takes up, whereas perimeter is the total distance around a shape. To find the area of a rectangle, you need to use the formula length multiplied by width. So if the length was 5cm and the width was 8cm, then you would multiply them together and you would get 40cm squared.

To find the area of a square, you will need to use the formula length multiplied by length or side by side. For example the length of a square is 3cm. You would do 3×3, which would equal 9cm squared. Also you do not have to out 3 cm on every side because all of the sides have the same length. To find the area of a triangle, you need to know the formula. The formula is half the base multiplied by the height. But if you were on the calculator you would do 0.5 by the base by the height. If a right angle triangle had a base of 6cm and a height of 4 cm, you can multiply 6 by 4, which is 24cm, then divide it by 2 which is 12cm squared. But for an equilateral triangle there would be a line in the middle with a number beside it. That would be your height. A lot of people get confused with the number on one of the sides (not the base) , but you just cross that out and forget about it. So if the base was 13cm and the height was 11cm and the other side of the triangle was 6cm , then you would cross out the 6, and multiply 13 and 11 together. With the answer as 143cm, you would divide that by 2 and you would get 71.5 cm squared.

The measurements used in Area are:
– Centimetres (cm)
– Metres (m)
– Kilometres (km)
– Hectares (ha)

While multiplying to find the area of something, it is important to look at the units of measurement or else if the answer was in metres and you put centimetres, your answer would be wrong! But don’t worry if happens to you because it happened to me! =D

Sincerely,
Natalie

• Natasha

Hi Natalie,
Those were some great tips on area! To find the area of a composite shape, you have to find the area of th separate shapes and then add them together.

Natasha

• Natalie

Dear Natasha,
WOW!!! You know a lot about area too!!! Yes, your correct about finding the area of a composite shape. But if you were to find the perimeter of a circle you would need to use pie which is twenty two over seven or 3.14. You would only use 22 over 7 if the diameter is a multiple of 7. What else do you know?

Sincerely,
Natalie

• Isabella.N

Dear Natalie,

WOW!!! You know a lot about area. Great Tips these will help me whenever I need to measure the area of something. Don’t worry I got the units of measurement wrong too.

Yours Truly,
Isabella

5. Alicia

Dear: five white and Miss.Azzopardi,

I really enjoyed learning about area. Thanks for teaching us area Miss.Azzopardi. Here are some tips to remember about area with shapes.

Rectangle: To find the area of a rectangle we need to find the formula. So we multiply the length and width.

Square: To find the area of a square we need to find the formula, so we multiply length and length or side times side.

Right-Angle triangle: To find the area of a right-angle triangle we need to find the formula which is 0.5/half x base x height.

I hope you learnt a lot from my tips

Bye,
Alicia

• Jennifer.A

Dear Alicia,

It looks like you learnt and enjoyed a lot in area!!!!
All of the tips you gave were correct and i learnt a lot from Miss Azzopardi too 😀 THANK YOU MISS AZZOPARDI 🙂 🙂 🙂

Sincerley,
Jennifer.A.

• Natalie

Dear Alicia,
WOW! I am so amazed of the knowledge you know about Area, especially when finding the area of a square. rectangle and triangles.

Sincerely,
Natalie

• Jennifer.A

Dear Natalie,

I am so amazed too that she has done so well in area!!!!!

Sincerley,
Jennifer.A

6. Jennifer.A

Dear 5W and Miss Azzopardi,

Area is a really good topic and I have learnt a lot from it!!!
The definition of area is very simple : The size a surface takes up 🙂
To find the area of a rectangle:
Length x Width
– Multiply the length and the width to find your answer.
Triangle:
1/2 x Base x Height
– Multiply base and height, and then half your answer.
Square:
Length x Length or Side x Side
– Multiply the side and the other side to find your answer.
Some of the measurements used in area are:
– Square centimetres ( cm2 )
– Square metres ( m2 )
– Square kilometres ( km2 )
– Hectares ( ha )
What do you know about area?

Sincerely,
Jennifer.A

• Alicia

Dear Jennifer.A,

WOW! Seems like you have learnt a lot from Miss Azzopardi and area is a good topic to learn about. The definition is correct. Here is a challenge for everyone! Who can find another definition of area in your own words.

Bye,
Alicia

7. Anthony

Dear Five White and Miss Azzopardi,
I have learnt a lot about area including the definitions of perimetre and area.
Definition of area: the size a surface takes up.
Definition of perimetre: the distance around a shape.
The units of measurement are:
-Centimetre (cm)
-Metre (m)
-Hectares (ha)
-Kilometres (km)
To find the are of a square you multiply length times length or side by side. To find the area of a rectangle you need to multiply length times width.
To find the area of an equilateral triangle you multiply the line and the base but when it is a right angled triangle you half base times width.
What have you learnt during area?

Sincerely Anthony

• Josephine

Dear Anthony,

I have learnt a lot during area I have known how to find the area of a triangle because I am always having trouble finding the area of it and I think you learnt a lot of things about area.

Kind regards,
Josephine

8. Josephine

Dear Five White and Miss Azzopardi,

I’ve learn’t a lot during Area and i knew so much more than before.
What i already know is that area is when you multiply not add.
To find the area of a triangle is that you multiply the base and the height and then you divide it by 2. to find the area of a square is that you multiply the sides and to find the area of a rectangle is that you multiply the length and width.
The units of measurement used are:
-centimetres (cm)
– meteres (m)
– hectares (ha)
– kilometres (km)
What did you learnt during Area?

Kind regards,
Josephine

• Grace

Dear Josephine,

I have learnt so many things this year about area. I was having a few problems with area before we had most of our lessons because I thought you had to add it just like perimeter.

Love to learn,
Grace

9. Tony

Dear Five White and Miss Azzopardi,

I have learnt lots about area and im pretty sure every body else has learnt lots too !!
Definition of Area : The size a surface takes up
Definition of Perimetre : The distance around a shape.
Units of Measurement :
Kilometres : km
Metres : m
Hectares : Ha
Cenitmetres : Cm
To find the area of a Rectangle you have to times the LengthXwidth to find the area. To find the area of a Triangle you have to times 1/2XBaseXHeight. To find the area of a Square you have to times the LengthXLength or SideXSide. I cant wait to learn new things about different topics !!

Sincerly,
Tony

10. Brenda

Dear Five white and Miss Azzopardi,

I enjoyed learning about area. Something I know about area is when you want to find are of a square you don’t times all the four sides all you need to is times the length times length and you will have your answer.

To find the area of a square you are to time the length times length ane you have your answer. To find the area of a rectangle you times the length times width and you will find your answer. To find the area of a triangle you times the base times height and divide it by 2 and you will have your answer.

The units of measurements of area are:
Km 2 (square kilometres)
M 2 (square meters)
Cm 2 ( square centimeters)
Ha ( hectares)

Sincerely,

Brenda

• Grace

Dear Brenda,

I also thought that you had to multiply all four sides of a square and well I wasn’t so sure what the formula was. The triangle was pretty difficult at first but then I knew the formula and you get the answer so easily. Do you know why you have to half it as well as the formula?

See you soon,
Grace

11. Isabella.N

Dear 5 White and Miss Azzopardi,

I have loved learning about perimetre and area for the past last 2 or 3 weeks and these are all the things i have learnt about perimetre and area:
Definition of area: The size a surface takes up.
Definition of perimetre: The distance around the shape.
The units that are used in area and perimetre are:
*Centimetre (cm)
*Metre (m)
*Hectares (ha)
*Kilometres (km)
To find the area of a square you will you have to times length by length or side by side and that is how you will find the area of a square.
To find the area of a rectangle you will have to times length by width or bass times height.
To find the area of a triangle you will have to times half times bass times height.

From,
Isabella

• Bella

Dear Isabella,

Wow!! You have learnt a lot about area. I agree I also have had a lot of fun learning about area. The definition of area is the size a surface takes up. You have great skills in math. What eels did you learn?

Sincerely,
Bella

• Natalie

Dear Isabella,
During this topic, I can see that you have been learning a lot due to the amount of knowledge you know about Area!!! I wish I could be as smart as you!

Sincerely,
Natalie

12. James

Dear Five white & Miss Azzopardi,

During the few weeks of doing area i’ve learnt to find the area of a triangle, square and rectangle and also find the perimeter of a shape.

13. Grace

Dear miss Azzopardi and 5W,

Area was a really fun topic to be learning about because you got to multiply divide and you addition to find the perimeter. The definition is the sized a surface takes up. To find the area of a square you have to do the formula which is length times length or side times side. To find the area you have to do 0.5 times base times height.

Kind regards,
Grace

• Josephine

Dear Grace,

I agree we’ve learnt a lot during area and it is a great topic as well.i can see that you’ve learnt a lot during Area!

Kind regards,
Josephine

14. Moufid

Dear five white and miss Azzopardi

I enjoyed learning about area, it was my favourite topic to learn in maths, the way to find he area of a triangle you must : 1/2 x base x height.

Sincerely,
Moufid

• Kong

Dear Moufid,

Moufid you are right but thats the formula! To find the area of a triangle you need to multiply the base and the height then half it. Anyway don’t get mixed up next time!

Yours Truly,
Kong

• Moufid

Dear Kong

Thank you for correcting me, you taught me not to use the formula when your finding the area of a shape.

Sincerely,
Moufid

• Tony

Dear Moufid,

I agree that I also enjoyed learning about area. To find the area of a Rectangle you have to follow the steps with LxW and to find the width of a right angle you have to follow the steps with 1/2xbasexhight.

Yours Truly,
Tony……………….

15. Andrea

Dear 5W & Miss Azzopardi,

I loved learning Area. It was so fun! I know the difference between Area & Perimeter. Area is the size a surface takes up whereas perimeter is the distance around the shape. To find the Area of a Rectangle you have to multiply the Length and Width and then you will find the answer 🙂 Some of the units of measurement that are used are:
– square centimeter (cm2)
– square meter (m2)
– hectare (ha)
– kilometer (km2)
When the topic Area was introduced I thought I wouldn’t learn anything, but now have learnt so much!

Sincerely,
Andrea

16. Amanda

Dear 5 White and Miss Azzopardi,

I really enjoyed learning about area and I thought it was fun.
To find the area of a rectangle you have to times the length and the width.

To find the area of a square you have to use the formula which is length x length.

To find the area of a triangle you have to use the formula which is 1/2 x length x width.

sincerely,
Amanda

• Cecilia

Dear Amanda,

Woah, You’ve improved a lot during this unit! Keep up the AWESOME work! 😀

Kind Regards,
Cecilia

• Jamie

Dear Cecilia,

I really enjoyed learning about are too! Hope u get better.

Kind regards,
Jamie:)

17. Cecilia

Dear Five White and Miss Azzopardi,

I loved learning about area! The definition of Area is, The size a surface takes up and the definition of perimeter is, The distance around a shape. The formula of these following shapes are:

Squares: Length x Length ( Side x Side )
Rectangles: Length x Width
Triangles: 1/2 x Base x Height
Right Angle Triangle: 1/2 x Base x Height

The measurements that are used in area are:
* km2 (square kilometers)
*m2 (square meters)
*cm2 ( square centimeters)
*ha ( hectares)

Sincerely,
Cecilia

• Jamie

Dear Cecilia,

Wow u sure do know a lot about area. Great problems as we’ll!!!!!

Kind regards,
Jamie

18. Hagen

Dear 5W and Miss Azzopardi,

I liked learning about area and perimeter. Although I already knew it and means the size a surface takes up. The definition for perimeter is a distance around a shape. The formula of finding the area of the following shapes are:
*Square: Length x Length
*Rectangle: Length x Height
*Triangle: 1/2 x Height x Base

To find the perimeter of the shapes of the following are:
Square: Length + Length + Length + Length/ Length x 4
Rectangle: Length + Height + Length + Height/ Length + Height x 2

Kind regards,
Hagen

• Nathan

Dear Hagen,

It seems like you have learnt a lot about area! Probably because we have learnt about it SO much. What was your favourite subject in maths?

Most Kindly,
Nathan