Question

The perimeter of a rectangle is $130$ cm . If the breadth of the rectangle $30$ cm , find its length . Also find the area of the rectangle

Answer 1

Given,

perimeter of rectangle $=130cm$

Breadth $=30cm$

So, the perimeter of rectangle $=130$

$2(l+b)=130$

$2(l+30)=130$

$2l+60=130$

$2l=130-60$

$2l=70$

$l=\frac{70}{2}$

$l=35cm$

Length $\left(l\right)=35cm$

Area $=l\times b$

$=35\times 30$

$=1050c{m}^2$

$\therefore$ Length of rectangle $\left(l\right)=35cm$

Area of rectangle $=1050c{m}^2$