Question

A 12ft ladder leans against the wall . its base us 4.5 feet from the wall. What us the angle formed by the ladder and the ground ?

pls show work!

Answer 1

38.4

Explanation:

1. Pythagorean Theorem: 4.5²+ x²= 12²→ 20.25 + x² = 144→ 144-20.25= 123.75

2. Square root 123.75, number wont be perfect, just round. (11.1)

3. Use inverse cos, sin, or tan. Answer will be the same.