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Please help me figure out the radius

Please help me figure out the radius-example-1
Please help me figure out the radius-example-1
Please help me figure out the radius-example-2
User Mr Mcwolf
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5 votes

Answer:

Explanation:

<EAF is a central angle. Its measure is 12o

Arc EF has angular measure of 12 degrees as well.

The formula for the arc length in cm is

Arc length = (given arc angle/360) * 2 * pi * r

r = 30 cm which is given

Given arc angle = 12 degrees.

Arc length = (12/360) * 2* pi * r

Arc length = 1/30 * 2*pi * 30

Arc length = 6.28

User Adam Krawesky
by
8.1k points

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