The Windshield Area Problem

Jaino's windshield wipers are not working, and he is concerned about the rainy season coming up$.$ He purchased a very expensive windshield coating, which repels water as it falls on the windshield. The product works so well, Jaino will have full visibility, even if he is driving in a thunderstorm. Because the product is so expensive, Jaino wants to coat only the part of the windshield that his driver's side wiper covers. The windshield wiper is $18$ inches long, and is affixed to a swing arm which is $22$ inches long from pivot point to wiper$-$blade tip. If the swing arm turns through $110$ degrees, what area of the windshield, to the nearest square inch, is swept by the wiper blade $($and therefore is the area that Jaino needs to coat$)?$ Remember, Jaino only wants to coat the part of the windshield that the $18$ inches swipes through along the $110$ degrees. Go out two decimal places for all numbers.

a$)$ Draw a picture, labeling all aspects of the problem.

b$)$ Show all calculations leading to the final answer. Be sure to write neatly and legibly. I will not grade any problem that has scratched out marks in it$.$