Sophia C.
asked • 11/19/22square based triangle
Consider a square-based straight pyramid. Suppose that the base is a square with sides 1616 in long, and all other edges are 1414 in long. Find an approximate value of the angle formed between the base and a triangular face. Present your answer in degrees, accurate up to four or more decimal places.
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2 Answers By Expert Tutors
Inactive Tutor answered • 11/19/22
Tutor
New to Wyzant
the hypotenuse of triangle with angle to be found, call TH
TH=√(142-(16/2)2)
The angle will have property, 16/2=TH*cos(angle)
angle=cos-1(8/TH)
If you use 14 as TH you will have wrong answer. Need to calculate TH first.
Inactive Tutor answered • 11/19/22
Tutor
New to Wyzant
This is basic Pythagoren Theorem. Use it!
Sophia C.
ive answered these questions at least ten times each and can't seem to get it right, for some reason im a couple degrees off every time and i don't know why
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11/19/22
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Sophia C.
I meant to say 16 inches and 14 inches11/19/22