Answer to Question #13186 in Geometry for bob

Question #13186

For a circle of radius 9 feet, find the arc length s cut off by a central angle of 6°.

Expert's answer

f the measure of central angle is 6°, the arc measure is 2*6°=12°.
Then use this proportion:
12° - x
360° - 2*pi*R
x = 2*pi*R * 12° / 360° = 2*9*3.14 / 30 = 1.88 feet.

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