Question

The length of a rectangle is 16 cm and its perimeter is equal to perimeter of a square with side 12.5 cm. Find the area of the rectangle.

Answer 1

Perimeter of the square $=4a=4\times 12.5=50cm$

Let the breadth of the rectangle $=b$ cm.
Perimeter of the rectangle $=2(l+b)=50cm$

$=>16+b=25$
$=>b=9cm$

Area of the rectangle $=l\times b=16\times 9=144{cm}^2$