Question

The bottom of a 13 foot straight ladder is the into the ground 5 feet away from a wall when the top of the ladder is leaned against the wall what is the distance above the ground it well reach

Answer 1

Distace above the ground = square root of 13 square + 5 square

Answer 2

12 feet

Explanation:

This is a Pythagorean theorem question

The ladder is the hypotenuse or c

the distance from the wall is a leg or a

and the wall is the other leg or b

a² + = c²

5² + b² = 13²

25 + b² = 169

-25 -25

b² = 144

√ √

√b² = √144

b = 12