Area and Perimeter

Area

100

Find the area of the following rectangle.

L= 4cm

W = 8cm

32cm²

200

Find the area of the following rectangle.

L = 8m

W = 7m

A = 56m²

300

Find the area of the following square.

Side of Square = 5cm

A = 20cm²

400

True or False:

Rectangles with the same area can have different perimeters.

True.

500

Find the total area of these two figures:

1. Square:  Sides = 2m

2. Rectangle: L = 2m   W= 4m

1. A = 4m²

2. A = 8m²

Total Area ---> 4 + 8 = 12m²

Unit Conversions

100

How many  millimetres (mm) are there in one centimetre (cm)?

10mm

200

What is the difference between a square centimetre (cm2) and a  centimetre (cm)?

Centimetres measures length.

A square centimetre (cm2) is a square unit measuring area. It has length and width (height and base).

300

Find the perimeter of the following square.

Square Side = 7m

P = 28m

400

How many square centimetres (cm2) are there in 1 square meter (1m2)?

10,000cm2

500

What is the relationship between square meter (m2) and 1 square kilometre (km2)?

1 square kilometre (km2) = 1000m x 1000m = 1,000,000m2  

Area AND Perimeter

100

How do you find the perimeter of a rectangle?

Add all the sides together

200

Find the area and perimeter of a rectangle if the length is 8m and the width is 4m.

A = 8 x 4 = 36m²  

P = 8 + 4 + 8 + 4 = 24m

300

Find the area and perimeter of a square with a side length of 6m.

A = 9 x 9 = 81m²  

P = 9 + 9 + 9 + 9 = 36m

400

Find the perimeter and area of a rectangle with sides 10cm and 5cm.

A = 10 x 5 = 50cm²  

P = 10 + 5 + 10 + 5 = 30m

500

Which birthday cake should you buy?

Cake A: perimeter= 28cm, length=10cm

OR

Cake B: perimeter= 28cm, length=12cm

Cake A: Perimeter= 10cm+10cm+4cm+4cm

                           =28cm

Cake A Area= 10cm x 4cm = 40cm2

Cake B: Perimeter=12cm+12cm+2cm+2cm

Cake B Area= 2x12 = 24cm2

What unit?

100

You have to measure the length of a steel nail to make sure it is long enough to build with. What unit of measurement would you use?

mm

200

Mrs. C's kitten is growing so fast. What unit of measure would you use to measure his kitten bed.

centimetres (cm2)

300

Mrs. Burton and Ms. Sands want to race their horses on a horse race track. What unit of measurement will they use to measure the area of the race track?

square meters (m2)

400

Mr. Fielder is going to take his two dogs to 4 dog parks across the city. He wants to know the area between all the dog parks.  What unit of measurement will he use?

Square Kilometres (km2)

500

How many square centimetres (cm2) are there in 1 square meter (1m2)?

10,000cm2