An automobile has a single windshield wiper. The total arm and blade is 12 inches long and rotates back and forth through an angle of .a.) What is the area (to the nearest hundredth) of a sector of a circle with a radius of 12 inches and an angle of ?b.) If the blade is 10 inches long, then there is a portion of the sector in part a that is not cleaning the windshield. What is the radius of that sector?c.) Using the radius from part b, determine the area (to the nearest hundredth) of the sector not being cleaned.d.) Subtract the value determined in part a by the value determined in part c to find the area of the windshield cleaned by the wiper blade. [round answer to one decimal place]
No windshield can have a wiper blade that short!!! This must be a back glass you are talking about in some SUV or Van.
