Posted by Randi on Tuesday, April 19, 2011 at 6:31pm.
A 10 ft. ladder is leaning against a building and makes an angle of 65 degrees with the ground. How high above the ground is the top of the ladder?

Geometry  MathMate, Thursday, April 21, 2011 at 1:00pm
Draw a right triangle, with 65° with the horizontal.
The ladder is the hypotenuse, and the wall is the opposite side of the 65° angle.
The height of the top of the ladder is therefore
h=Lsin(65°)
where L is the length of the ladder.
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