Question

Calculate the areas of the rectangle
8 cm
3 cm

Answer 1

Rectangle A: 22 cm

Rectangle B: 25.8 cm

Explanation:

To find the area, we multiply the size of the two sides.

8 x 2 = 16

3 x 2 = 16

Now, we have to add 16 and 6.

16 + 6 = 22

To find the area, we multiply the size of the two sides.

5.2 x 2 = 10.4

7.7 x 2 = 15.4

10.4 + 15.4 = 25.8

The answers are:

• 22 cm
• 25.8 cm

Hope this helps!

Answer 2

The areas of the rectangles are:

a) 24cm²

b) 40.04cm²

How to find the areas of the rectangles?

For a rectangle of lenght L and width W, the area is given by:

A = L*W

a) Here we can see that L = 8cm, W = 3cm, replacing that in the formula for the area we will get:

A = 8cm*3cm = 24cm²

b) The length is L = 5.2cm and the widthis W = 7.7cm, then the area here is:

A = 5.2cm*7.7cm = 40.04cm²