Question

A rectangular ground is 40 m long and 30 m board . If a girl runs three times around the ground , what distance does she covers?​

Answer 1

length = 40 m

breadth = 30m

Perimeter = ?

Now ,

Perimeter = 2 (l+b)

= 2 ( 40 + 30 m )

= 2 × 70 m

= 140 m

Now ,

If a girl runs three time around the ground =140 m×3

= 420m