Posted by Anonymous on Monday, October 4, 2010 at 9:45pm.
15ft
imagine a triangle. The diagonal side is 17 ft. the bottom is 8 ft. Use the pythagorean theorem to find the third side. so
17^2 minus 8^2 = 225. then take the square root of 225, which is 15
Let c = the length of the ladder. b = the distance from the wall. Use the Pythagorean theorem.
a^2 + b^2 = c^2
a^2 + 8^2 = 17^2
a^2 + 64 = 289
a^2 = 225
a = 15
my way worked too
Yep. It's always good to show students more than one way to solve a problem.
Btw -- I hadn't seen your post when a posted mine.
*I posted mine.
oh ok :)
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