Question

How can we take breadth of rectangle if length is 35 cm and perimetre of rectangle is 100 cm

Answer 1

Perimeter = 2(l+b)
100 = 2(35+b)
100 = 70+2b
2b = 100-70
2b = 30
b = 30/2
b = 15 cm

Answer 2

this is the solution,if length and perimeter is given and we have to take out breath