Question

1930
3. O is the centre of each circle. Find the
22
circumference of each circle. Take it =
7
(a)

O
28 cm
​

Answer 1

Answer:

44cm

Step-by-step explanation:

circumference of a circle whose radius is r is given by 2πr

Here r=7 cm

Hence circumference of the circle =2π(7)=2⋅

7

22

⋅7=2⋅22=44 cm