OpenStudy (anonymous):
need help on this essay question
OpenStudy (anonymous):
Ben is a safety inspector for a family gym. Recently, guests have been complaining about the diving board saying that it is leaning towards the water. Ben needs to know whether this diving board is standing up straight or not. Ben measures the height of the diving board to be 15 feet. The pool is 13 feet across and he measures the diagonal from the other side of the pool to the top of the diving board to be 21 feet. Is the diving board at a 90 degree angle with the ground? Explain how you know.
jimthompson5910 (jim_thompson5910):
If you can show that 13^2 + 15^2 = 21^2 is true, then you will have shown that the given triangle is a right triangle. This will then tell you if the diving board at a 90 degree angle with the ground. This is using the converse of the pythagorean theorem.
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