Asked by y912f

A wheel with a 20-inch radius is marked at two points on the rim. The distance between the marks along the wheel is found to be 3 inches. What is the angle (to the nearest tenth of a degree) between the radii to the two marks?
someone helped me on this before: angle/360=3/(40pi), i know i have to solve for angle..but i still don't get the answer..
A. 4.6 degrees
B. 10.6 degrees
C. 6.6 degrees
D. 8.6 degrees
Answered by Damon
for small angles, angle in radians is about the arc length over radius
3/20 = .15 radians
.15 * 360/2 pi = 8.6 deg
Answered by y912f
THANKSSS<33
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