Find the radius of a circle whose circumference is  15.7cm

Subject
Topic
Level
Primary
Grade
5

Answer

2.50 cm

Steps

Circumference= 2×(pi)×radius=15.7

Radius= 15.7/(2×(pi))

= 15.7/(2×22/7)

=(7×15.7)/44

=109.9/44=2.497 cm.

 

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