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The Unit Circle Exercises

Example 1

Convert 150° to radians.

Hint

We want the degrees to cancel, so multiply by .

Example 2

Convert 180° to radians.

Hint

Multiply by .

Example 3

Convert radians to degrees.

Hint

Our conversion factor is .

Example 4

Find the reference angle for 315°.

Hint

Quadrant IV.

Example 5

Find the reference angle for 690°.

Hint

Subtract 360°, then figure out which quadrant you're in.

Example 6

Find the reference angle for

Hint

In Quadrant IV, ρ = 2π – ɵ.

The Unit Circle Exercises

The Unit Circle Exercises

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

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