Asked by becky

triangle GHE
GH=10
HE = 17
hypotenuse GE =21
HF is an altitude

Find HF
Answered by Damon
10, 17, 21 IS NOT a Right triangle, no hypotenuse here
Answered by Damon
In general

h = 2*area/base
here the base is EG = 21

the area is
sqrt[ s(s-a)(s-b)(s-c) ]
where s = (a+b+c)/2
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