Question

The tip of a 15-inch wiper blade wipes a path that is 35 inches long. What is the angle of rotation of the blade in radians to the nearest tenth?

Answer 1

The solution to the problem is as follows:

Since given are :

s = length of arc = 35

r = 15

Use the formula:

s = r*theta

theta = s / r = 35 in / 15 in = 2.3 radians

Therefore, the angle of rotation of the blade is 2.3 radians.

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