# Trigonometry

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The angle of elevation of the sun is 20 degrees. At the same time,how long is the shadow cast by a building 50 meter high?

• Trigonometry -

You would start off by setting up the equation as follows:

tan20=50/x (You would use tan because of the chief, SOHCAHTOA tan is opposite over adjacent.

multiply by x on both sides leaving you with
xtan20=50

Divide by tan 20.

• Trigonometry -

tan20=50/x
xtan20=50
50/tan20
137.37 meters

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