Question

what is the circumference of a circle with diameter 5 cm?

Answer 1

Answer: Diameter is 5 cm then radius is 5/2= 2.5 cm

Circumference of circle =2*π*r

2*22/7*2.5

2*22/7*25/10

20/14

10/7

1.428

Answer 2

Answer:

π rxr

22/7* 2.5 *2.5

22/7* 25/10*25/10

answer =55/11