SOLUTION: Two identical circular holes of diameter 12cm are drilled through a solid rectangular prism. Determine the change in surface area caused by the added holes. The rectangular prism

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Question 1081941: Two identical circular holes of diameter 12cm are drilled through a solid rectangular prism. Determine the change in surface area caused by the added holes.
The rectangular prism has a length of 36cm, width of 23cm and height of 20cm

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Assuming the each hole is drilled through the opposing 36*23 cm^2 sides, their length each is 20 cm.


This setup is subtracting the surface which makes the holes on the opposising drilled sides and adds the surface of each cylinder.