SOLUTION: What is the length of the diagonal of a right rectangular prism with dimensions l = 5cm, w = 4 cm, and h = 3 cm?

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Question 266431: What is the length of the diagonal of a right rectangular prism with dimensions l = 5cm, w = 4 cm, and h = 3 cm?
Answer by drk(1908)   (Show Source): You can put this solution on YOUR website!
this is a 3 dimensional pythagorean theorem and is expressed as

or

which is

or

so,
d = 5sqrt(2)
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