SOLUTION: A semicircular window of a radius 14 inches is o be laminated with a sunblock coating that costs $.70 per square inch to apply. What is the total cost of coating the window to the
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Question 296364: A semicircular window of a radius 14 inches is o be laminated with a sunblock coating that costs $.70 per square inch to apply. What is the total cost of coating the window to the nearest cent?
Please show your work. Thanks. Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! Area=pir^2
Area=3.14*14^2
Area=3.14*196
Area=615.44 is the area of the circle.
615.44/2=307.72 is the area of the semi circle.
307.72*.70=$215.40 is the cost of the sunblock to cover the semi circle.
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