Question 130181
Use Pythagoras (575 BC).
hypotenuse^2 = side^2 + other side ^2
h^2 = 5^2 + 10^2
h^2 = 25 + 100
h^2 = 125
h = 5*sqrt(5) or appoximately 11.18 inches
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Cheers,
Stan H.