SOLUTION: ⦁A car’s rear windshield wiper rotates 125°. The total length of the wiper mechanism is 20 inches and the length of the wiper blade is 12 inches. Find the area wiped by the wi

Question 1195134: ⦁A car’s rear windshield wiper rotates 125°. The total length of the wiper mechanism is 20 inches and the length of the wiper blade is 12 inches. Find the area wiped by the wiper blade.

Found 2 solutions by ikleyn, Alan3354:
Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
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May be, you describe for us how the wiper mechanism works, for clarity and for completeness purposes ?

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
⦁A car’s rear windshield wiper rotates 125°. The total length of the wiper mechanism is 20 inches and the length of the wiper blade is 12 inches. Find the area wiped by the wiper blade.
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Find the area of a circle with a radius of 20 inches.
Subtract the area of a circle with a radius of 8 inches (20 - 12)
Multiply that by 125/360
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