college algebra

Question

a building is 2 ft from a 9 ft fence that surrounds property. A worker wants to wash a window that is 13 ft up on the building. He plans to determine whether to place the ladder inside or outside the fence. If the ladder is inside the fence and the bottom is resting against the fence- How long should the ladder be?

Answer 1

Draw a label a diagram!

x represents the length of the ladder.

Use Pythagoras

x² = 2² + 13²

 

Can you solve for x