Question

The perimeter of a rectangular sheet is 100 cm. If the length is 35 cm, find its breath Also find the area.

Answer 1

Let length$=l$, breadth$=b$ of rectangle

$\Rightarrow$ Perimeter$=2(l+b)$

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

$\Rightarrow 50=35+b$

$\Rightarrow b=15$cm

Area$=lb=35\times 15=525c{m}^2$.