How to solve 45 45 90 triangle given hypotenuse?

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asked Nov 4, 2018 168k views

1 Answer

Nick Berardi · Answer 1 · 2018-11-09T18:37:41+0000

From the Special Triangle Theorem, the hypotenuse is equal to the side lengtht times the Sqrt(2).
So hypotenuse H = xSqrt(2), x=H/Sqrt(2).
Using numbers, if H = 7, then x = 7/Sqrt(2) = 7Sqrt(2)/2 to rationalize it.

How to solve 45 45 90 triangle given hypotenuse?

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