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if the length of the shorter sides of a 45 degree-45 degree 90 degree triangle is x, find the lenght of the hypotenuse, in terms of x

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    45-45-90 triangle is isosceles.
    The other short side is therefore also x.
    Using Pythagoras theorem, we find
    hypotenuse²=x²+x²=2x²
    Solve for hypotenuse.

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