Question

A square and a rectangle have equal areas.If the side of the square is 20 cm and the breadth of the rectangle is 10 cm find the length of the rectangle.

Answer 1

a^2=lb
20^2=l×10
400/10=l
l=40cm

Answer 2

Area of square = Area of rectangle

20 * 20 = 10 * l

400/10 = l

Length = 40cm