57 The windshield wiper of a car rotates through an angle of measure radians, as
6
shown.
10 in.
511
-6
2 in.
I
The shaded section of the diagram represents the area cleared by the
10-inch blade of the windshield wiper as it moves from one side to the other.
Approximately what is the area cleared by the blade of the windshield wiper?