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finding the central angle?
Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s.
Radius=17 feet
Arc length=10 feet
2 Answers
- 1 decade ago
The circumference of your circle is 34pi
So the fraction of the circle that this arc takes up is 10/(34pi)
The fraction of your circle that the angle takes up is (theta)/(2pi)
These fractions should be the same, so solve
10/(34pi) = (theta)/(2pi)
hope this helps!
