Question

The perimeter of a rectangular sheet is $100cm$. If the length is $35cm$, find its breadth.

Answer 1

Given:Perimeter of a rectangular sheet$=100$cm

Perimeter of a rectangle$P=2(l+b)$ where $l=35$cm

$\Rightarrow 100=2(35+b)$

$\Rightarrow 35+b=\frac{100}{2}=50$

$\Rightarrow b=50-35=15$cm

$\therefore$ its breadth is $15$cm