Question

Find the radius of a circle whose circumference is 42cm

Answer 1

Answer:

circumference = 2πr = 42

πr = 42/2 = 21

22/7 × r = 21

r = 21×7/22

r = 6.6

mark me as brainlist

Answer 2

Answer:

Step-by-step explanation:

Circumference=2πr=42 then let us assume radius as r. 42=2×22/7×r. 42=44/7r. 284=44r,r=6.6cm