A ladder that is 17 feet long is 8 feet from the base of a wall. How far up the wall does the ladder reach? Pythagorean Theorem
a2+ b2= c2{c is the hypotenuse...opposite the right angle} a2+ 82= 172{substitute in to the Pythagorean Theorem} a2+ 64 = 289 a2= 225 {subtract 64 from both sides} a = 15 ft {take the square root of both sides}  Algebra House
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