A ladder is placed against the side of a house. the top of the ladder is 12 feet above the ground. the base of the ladder is 5 feet away from the house. find the length of the ladder.
The length of the ladder is 13 because: using the pythagorean theorem a² + b² = c² 5² + 12² = c² 25+144 = 169 169 = c² Then figure the square root of 169. 13 x 13 = 169 Hope this helps :)