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# Unit 4: Get ready for trigonometry

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## About this unit

Brush up on your trigonometry skills as you measure and calculate the sides, angles, and ratios of every kind of triangle. By triangulating your understanding of the Pythagorean theorem, coordinate planes, and angles, you'll be yet another degree prepared for Algebra 2.### Learn

### Practice

- Unit circleGet 3 of 4 questions to level up!

### Learn

### Practice

- Radians & degreesGet 3 of 4 questions to level up!
- Unit circle (with radians)Get 3 of 4 questions to level up!

### Practice

- Trig values of special anglesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Learn

### Practice

- Graph sinusoidal functionsGet 3 of 4 questions to level up!
- Construct sinusoidal functionsGet 3 of 4 questions to level up!
- Graph sinusoidal functions: phase shiftGet 3 of 4 questions to level up!

### Learn

### Practice

- Modeling with sinusoidal functionsGet 3 of 4 questions to level up!
- Modeling with sinusoidal functions: phase shiftGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

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Level up on all the skills in this unit and collect up to 1000 Mastery points!