Question

The length of a rectangle of area 60 cm^{2} is 10 cm. Its perimeter will be

• A. 81cm
• B. 32cm
• C. 63cm
• D. 49cm

Answer 1

The correct option is B 32cm

Area of the rectangle = Length $\times$ Breadth

Area = 60 $c{m}^2$
Length = 10 cm

$\Rightarrow$ 60 $c{m}^2$ = Length $\times$ breadth
$\Rightarrow$ 60 $c{m}^2$ = 10 $\times$ Breadth
$\Rightarrow$ Breadth = 60 $c{m}^2$ $÷$10 = 6 cm
Perimeter of the Rectangle = 2( length + Breadth )
= 2 $\times$ (10 cm + 6 cm)
= 2 $\times$ (16 cm)
= 32 cm