Question

If the perimeter of a rectangle is 90 m and length is 30 m then the breadth is ________ . (A) 15 m (B) 15 cm (C) 20 m (D) 25 m​

Answer 1

Answer:

l=30m

perimeter of a rectangle=90

2(l+b)=90

l+b=90/2=45

30+b=45

b=45-30=15m