Homework Help: math

Posted by moniqui on Thursday, January 5, 2012 at 9:05pm.

a 5ft pole is situated on top of a building. a 25ft pole extends from the top of the pole to a point on the ground creating a 26 degree angle. find the height of the building. please help me work this problem

math - Reiny, Friday, January 6, 2012 at 8:28am
I see a right-angled triangle with an angle of 26° at the ground, an opposite side of (x+5) and a hypotenuse of 25
so
(x+5)/25 = sin 26
x+5 = 25sin26
x = 25sin26 - 5 = 5.595

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