8.1 - Introduction
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is a right triangle?
💡 Hint: Think of the triangle structure.
What does trigonometry study?
💡 Hint: Remember the Greek origin.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What type of triangle has one angle measuring 90 degrees?
💡 Hint: Recall the definition we discussed.
True or False: Trigonometry is used to measure distances in astronomy.
💡 Hint: Think about its historical uses.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A lookout tower stands 120 meters tall. You are standing 80 meters away from its base and looking up at an angle of 45°. How high is the angle of elevation, and can you find the height if the angle changes to 60°?
💡 Hint: Apply the tangent ratio to figure out the height.
If a boat is 30 meters from the shore and the angle of elevation of the top of a cliff is 30°, how high is the cliff?
💡 Hint: Consider the angle you're working with.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.