Angles in the Unit Circle

In which quadrant is -570⁰?

• Q1

• Q2

• Q3

• Q4

What is the reference angle for 240°?

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Find the reference angle for an angle measuring -310⁰.

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Convert -8π/5 to degrees.

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Convert 4π/ 3 to degrees.

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Which sketch is -70°?

• A

• B

• C

• D

What is a complete circle in radians?

• π

• 2π

• 1/2 π

• 1

π/2 is equal to how many degrees?

• 180°

• 90°

• 135°

• 240°

At θ = 30°, what is the equivalent angle measure in radians?

• π/2

• π/3

• π/4

• π/6

Convert 510^o to radians.

• 25π / 3

• 23π / 8

• 17π / 6

• 51π / 8