Question

Jack has to paint the wall of his bedroom so he used a ladder. he placed the ladder 10 feet from a wall. the ladder reaches 13 feet up on the wall. find out how long is the ladder.

Answer 1

use Pythagorean theorem to solve for for the hypotenuse of the triangle. The base(b) is 10 and the height (a ) is 13, solve for c. c^2 =a^2 +b^2