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# Unit 1: Right triangles & trigonometry

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## About this unit

Can you find the length of a missing side of a right triangle? You most likely can: if you are given two side lengths you can use the Pythagorean Theorem to find the third one. But, what if you are only given one side? Impossible? Cue sine, cosine, and tangent, which will help you solve for any side or any angle of a right triangle.### Learn

### Practice

- Use ratios in right trianglesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 160 Mastery points

### Practice

- Solve for an angle in right trianglesGet 3 of 4 questions to level up!

### Learn

### Practice

- Relate ratios in right trianglesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

Up next for you:

Level up on all the skills in this unit and collect up to 700 Mastery points!