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5 votes
Find the radius of a circle whose arc length is 55 m and its central angle measure if 5radians.

User TheCuBeMan
by
6.8k points

1 Answer

2 votes

Solution:

The arc length of a circle is given by the following equation:


L=\theta R

where theta is the central angle and r is the radius of the circle. Then, replacing the given data into the previous equation, we get:


55=5R

solving for R, we get:


R\text{ = }(55)/(5)=\text{ 11}

then, the correct answer is:


R\text{ = 11}

User Kostas Drak
by
7.0k points
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