please answer this 19 th no. question find cuircumference of circle with following radius
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2*22/7*14
after calculation
=88 is right answer
if r = 21
.2*22/7*21
=132 is the rgt ans
=2x22/7x14
=88cm
(b) Circumference = 2πr
= 2x22/7x21
= 132