Question

Find the circumference and area of a circle whose radius are as follows
1) 42 m.

Answer 1

We are given, r = 42 m

Hence, Circumference = 2πr = 2*3.14*42 = 263.76 m

Answer 2

circumference of a circle

$2\pi \: r$

given radius 42 m

2×22/7×42

=44×6

=264m