What area of windshield is cleaned by wiper if it swings


The arm of a car windshield wiper is 12.75 in long and its attached at the middle of a 15.00 in blade. (assume that the arm and blade are in line.) What area of the windshield is cleaned by the wiper if it swings through 110.0 degree arcs?

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Physics: What area of windshield is cleaned by wiper if it swings
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