SOLUTION: I need to find the total surface area of a metal washer that is 2.53 cm in diameter, 0.08cm high and the hole that is drilled out in the center measured 0.32cm in diameter.Can you
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Question 214402: I need to find the total surface area of a metal washer that is 2.53 cm in diameter, 0.08cm high and the hole that is drilled out in the center measured 0.32cm in diameter.Can you help with the equation? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! need to find the total surface area of a metal washer that is 2.53 cm in diameter, 0.08cm high and the hole that is drilled out in the center measured 0.32cm in diameter
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Top = [(pi)(2.53/2)^2 - pi(0.32/2)^2 ] cm^2
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The bottom area is the same as the top so double the top area.
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Outer side Area?
sa = (circumference)*(height)
sa = 2(pi)2.53 * 0.08
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Inner side Area?
= 2(pi)0.32*0.08
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Add top + bottom + outside + inside to get Total surface area
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Cheers,
Stan H.
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