### Home > GC > Chapter 5 > Lesson 5.1.2 > Problem 5-17

5-17.

While shopping at his local home improvement store, Chen noticed that the directions for an extension ladder state, “*This ladder is most stable when used at a angle with the ground.*” He wants to buy a ladder to paint a two-story house that is

Draw a diagram comparable to the one to the right.

Refer to the Math Notes box in Lesson 5.1.2 if you need help deciding which trigonometric ratio to use when solving for .

length of ladder =