SOLUTION: An aluminum plate is made according to the following dimensions. The outer radius is 10 inches and the inner radius is 3 inches. (See diagram below) Use p = 3.14 as an approximate
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Question 170768: An aluminum plate is made according to the following dimensions. The outer radius is 10 inches and the inner radius is 3 inches. (See diagram below) Use p = 3.14 as an approximate value. (a) How many square inches in area is the aluminum plate (the shaded region)? (b) If the cost to construct the plate is $7.50 per square inch, what is the construction cost?
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
well I cant see the shaded area but I think I know what they are after .
:
Area of the total is Area of the interior portion is we have = =sq in
:
dollars
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