Question

circumference of a circle is 4400cm.findDiameter of the circle is

Answer 1

Circumference of a circle =2πr=4400cm
2*22/7*r=4400
4
r=4400*7/44=700cm
d=2r=2*700=1400

Answer 2

Circumference of circle = 4400cm

2πr = 4400

πr = 4400/2

πr = 2200

r = 2200× 7/22

r =700cm

2r = d

d = 1400cm

hope this helps you..