Posted by marvin on Tuesday, August 30, 2011 at 10:55pm.
the leaning tower of pisa is 179 ft tall. it leans at an angle of 5.5 degrees. if the angle of elevation of the sun is 60 degrees and the sun is opposite the side on which the tower leans, how long is the shadow that the tower will cast?

Trigonometry  Reiny, Wednesday, August 31, 2011 at 12:21am
Make a sketch.
I have a triangle ABC, where BC is the ground, AC is the tower.
Angle B = 60°, angle C = 84.5°, making angle A = 35.5°
by Sine Law:
BC/sin 35.5° = 179/sin 60°
I get BC = 120.026
So the shadow of the tower is 120 ft long

Trigonometry  obieey, Wednesday, November 28, 2012 at 2:39pm
the angle of elevation of the sun is 31 degrees. find the lenght of the shadow, to the nearest foot, of a man that is 6feet tall.
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