What is the radius of a circle with circumference of 5 cm?

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Answer 1 · 2015-11-04T16:33:51

#0.796# #"cm"#

Circumference #= 2pir#

#5 = 2pir#

#r= 5/(2pi)#

#r = 0.796 #

Answer 2 · 2017-04-18T04:47:41

r = 0796 is right answer.

It can be fuhrer explained as under :-

Formula for radius is : -
Since

#Circumference, C= 2pir#

Hence

#r = C//2pi#

Here ,

C = 5
#pi=22/7 or 3.14#

Hence by putting value in formula #r=C//2pi#

#r=5//2pi#
or

#r=5//2*22/7#

or

#r=5//2*3.14#

or

#r=5//6.18#

or

#r= 0.796#