Question

1.
Find the perimeter and area of a rectangle with length 8 cmn and width 5em.
Find the perimeter and area of a square with side 8 cm.
3. Find the side of a square whose area is 36 m².​

Answer 1

Answer:

length×breadth

8×5=40

Answer 2

1:To get the perimeter, you add up 2 of the length and 2 of the width: 2 x 8 + 2 x 3. The answer therefore is 22cm (don't forget the units!) The area of the rectangle is worked out by mulitplying the length by the width: 8 x 3. The answer is therefore 24cm^2.

2:Solution

P=4a=4·8=32cm

3:Using the formula

A=a2

Solving fora

a=A=36=6