Question

if the diameter of a circle is 14 cm find its perimeter

Answer 1

since d = 2r

so

14=2r

r=14/2=7cm

and perimeter of circle = it's circumference

so

2πr =2×22/7×7=44cm

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Answer 2

Hey Ma8 ,

*********

2 × radius = diameter

radius = 14/2= 7

perimeter or circumference of circle = 2πr

= 2 × 22/7×7

= 2 × 22

= 44 cm

hence , perimeter of a given Circle is 44 cm

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