SOLUTION: A semicircular window of radius 15 inches is to be laminated with a sunblock coating that costs $0.85 per square inch to apply. What is the total cost of coating the window, to the

Question 163989: A semicircular window of radius 15 inches is to be laminated with a sunblock coating that costs $0.85 per square inch to apply. What is the total cost of coating the window, to the nearest cent? (Use p = 3.14. Hint: Area of Circle: A = pr�)
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Since it is a SEMI circle the area is: (half a circle)

plugging in our values

square inches (area of semicircle window)
.
Now, we multiply the area (above) by cost per inch:

That's $300.26 for the coating.

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