Question

Find the length of the side of a square that is

equal in area to a rectangle measuring 45 cm
by 5 cm.

Answer 1

15 cm.

Explanation:

The area of the rectangle = 45 * 5

= 225 cm^2.

So the length of the side of the square = √225

= 15.

Answer 2

15cm

Explanation:

a=l*w

45*5=225

area of a square is a=l^2

225=l^2

15=l