Question

Find the breadth of the rectangle whose perimeter is 160cm and whose langth is : a 25cm b 60 cm c 56.5cm

Answer 1

Perimeter =2(l+b)=160
=(l+b) =80

A) length =25
25+b=80
=b=55 cm

B) length =60
=60+b=80
=b=20 cm

C) length =56. 5
=56.5+b=80
=b=23.5

Answer 2

a. perimeter =2(l+b)
160 = 2(25+b)
80=25+b
b=80-25
b=55cm

b. perimeter =2(l+b)
160=2(60+b)
80=60+b
b=20cm

c.perimeter =2(l+b)
160=2(56.5+b)
80=56.5+b
b=80-56.5
b=23.5cm