Think & Click: Problems Using Right Triangle Trigonometry
Now, you try. Complete the Think & Click activity by looking at each problem below, thinking about it, and then clicking on the question to reveal the solution.
A ladder is resting against a wall. The ladder and the ground make an angle of 40° and the ladder is 4 ft from the wall. How long is the ladder?
cos 40° = 
x ≈ 5.22 ft
A plane is descending towards a runway in Seattle. The plane is flying at an altitude of 10 miles and is 210 miles from the runway, as measured from the ground. What angle will the plane’s path make with the runway?
Solve tan x = 
x = 2.73°
x = 2.73°
Review Worksheet
Complete the review worksheet for this section before taking the quiz. Download the review worksheet, complete the questions, and then download the answer key to check your work. Make sure to ask your teacher any questions.
