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Lesson: Trigonometric Ratios and the Unit Circle

Learn about trigonometric ratios in the context of the unit circle. In this lesson, we'll see how the quadrant in which an angle lies determines the signs of its sine, cosine, and tangent, and how we can use this knowledge to solve trigonometric equations.

Worksheet: Trigonometric Ratios and the Unit Circle • 20 Questions

Q1:

In which quadrant does lie if and ?

Athe fourth
Bthe first
Cthe third
Dthe second

Q2:

In which quadrant does lie if and ?

Athe fourth
Bthe second
Cthe third
Dthe first

Q3:

In which quadrant does lie if and ?

Athe fourth
Bthe third
Cthe first
Dthe second

Q4:

In which quadrant does lie if and ?

Athe fourth
Bthe first
Cthe third
Dthe second

Q5:

In which quadrant does lie if and ?

Afourth
Bfirst
Cthird
Dsecond

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