Question

What is the radius of a circle that has a circumference of 81.64 meters? (Use 3.14 for pi ).

Answer 1

Given,

circumference of the circle = 81.64 m

Circumference of a circle = 2πr

where, r equals radius of the circle

Circumference of the circle

= 81.64 = 2 × 3.14 × r

= 81.64/2 = 3.14r

= 40.82 / 3.14 = r

= 14 cm = r

The radius of the circle is 14 cm.

Answer 2

Answer:

Hence, the radius of the circle is 13

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