Question

find out the radius and diameter of circumference of 166

Answer 1

Circumference = 166
Circumference = 2πr
116= 2×22/7×r
r = 116×7/2×22
r = 18.45
D = 2r
= 2×18.45
= 36.9
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Answer 2

2πr = 166

πr = 83

r = 83×7/22

r = 581/22


diameter d = 2r
d = 2×581/22

d= 581/11