allison908 allison908

19-07-2017
Mathematics

contestada

How high is a 40-foot ramp if it is propped at a 30 degree angle?

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CastleRook CastleRook

25-07-2017

This is the concept of trigonometry, the height of the ramp will be given by:
sin theta=[opposite]/[hypotenuse]
theta=30
opposite=x
hypotenuse=40 ft
hence;
sin 30=x/40
thus;
x=40sin30
x=20 ft
the ramp is 20 ft high

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