Question

there is a circular garden to be fenced. Its radius is 42m. How much length of fencing is to be done.

Answer 1

here we have to find circumference.
that is 2pi r
2 into 22/7 into 42.
So 264m fencing is to be done

hope.its helpful

Answer 2

radius=42 m

therefore,
circumference of circle= 2πr
= 2 × 22/7 × 42
= 264 sq.m