Posted by carolyn on Tuesday, January 25, 2011 at 9:34pm.
A ladder is propped against a wall. If the top of the ladder reaches 18 feet up the wall and the base of the ladder is 6 feet from the base of the wall, how long is the ladder?

geometry  helper, Tuesday, January 25, 2011 at 9:52pm
If you sketch this out, the ladder, up against the wall, forms right triangle.
Using the Pythagorean theorem, you need to find c, the hypotenuse.
c^2 = 6^2 + 18^2
Solve for c, the length of the ladder.

geometry  Anonymous, Friday, May 10, 2013 at 6:37pm
129600
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