SOLUTION: A large fireplace in a hotel has a rectangular opening with a height of 5 feet and a diagonal of 13 feet, as shown in the diagram below.

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Question 974717: A large fireplace in a hotel has a rectangular opening with a height of 5 feet and a diagonal of 13 feet, as shown in the diagram below.
Answer by Danielshinmath(31)   (Show Source): You can put this solution on YOUR website!
If you are asking what the length is, sure the pythagorean theorem.
it will be 13^2 - 5^2 =12^2
So the answer will be 12 feet

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