Find the Radian Measure of the Central Angle of a Circle

question 31

Multiple Choice

Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s. ?
Radius r
Arc Length s
80 kilometers
?145 kilometers
?

• A)? = ?6 radians
• B)? = \(\frac { 29 } { 45 }\) radians
• C)? = \(\frac { 45 } { 29 }\) radians
• D)? = \(\frac { 29 } { 16 }\) radians
• E)? = ? \(\frac { 16 } { 29 }\) radians

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