A ladder leans against a brick wall. The ladder itself is 20 feet long. The ladder reaches a height of 15 feet on the wall. How do you find the angle of elevation the ladder makes with the ground?
1 Answer
The angle of elevation is
Explanation:
Using the function
We know some of the lengths in this diagram.
H = 20
O = 15
We are trying to find
Which of these do we use? Well, which of these functions do we know the values of? The only one with both
Now, using your calculator, hit