Posted by fakku on Wednesday, May 18, 2011 at 1:28pm.
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  Annonymous, Wednesday, May 18, 2011 at 3:30pm
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.
Your answer would be 137.37 meters

Trigonometry  NIRVANA RIZA A. GARON, Saturday, March 10, 2012 at 9:49am
tan20=50/x
xtan20=50
50/tan20
137.37 meters
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