2 Answers

Stephen Briney · Answer 1 · 2020-11-27T02:28:38+0000

Approximate circumference of a semicircle with a radius of 30 centimeters is 94.2 centimeter

Solution:

Given semicircle with a radius of 30 centimeters

To find: approximate circumference of a semicircle

To find circumference of semicircle we can divide the circumference of circle by 2

circumference of semicircle = circumference of circle
2

$\text{ circumference of semicircle} = (2 \pi r)/(2) = \pi r$

Substituting the given radius = 30 cm,

$\text{ circumference of semicircle} = 3.14 * 30 = 94.2$

Thus approximate circumference of a semicircle with a radius of 30 centimeters is 94.2 centimeter

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