Question

If the perimeter of a rectangle is 240 cm and length 70 cm,then find its breadth and area

Answer 1

Answer:

Breadth= 50cm

Area = 3500 cm square

Step-by-step explanation:

Perimeter of a rectangle= 240cm

Perimeter of a rectangle= 2(length+ breadth)

So 2(l+b) = 240

2l+2b =240

Put value of length (70cm)

2(70) + 2b = 240

140+ 2b= 240

2b= 240-140

2b= 100

b= 100/2

b= 50cm

Area of a rectangle= length× breadth

A= 70cm× 50cm

= 3500cm2