Answer:
12 feet
Step-by-step 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
