Maria looked at the architectural plan of a room with four walls in which the walls meet each other at right angles. The length of one wall in the plan is 13 inches. The length of the diagonal of the floor of the room in the plan is approximately 15.26 inches.
Is the room in the shape of a square? Explain how you determined your answer. Show all your work.
I'm pretty sure it's not a square, would i do 13 on both sides, then 13 squared twice add them and find the square root? that's how I got my answer but can you confirm thats the way to do it?

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i got 18.38 and so on

|dw:1438387540971:dw|

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