Unit Circle Quiz (all 6)

cos(60°)

• 0
• 1/2
• √3/2
• 1

cos(2π/3)

• -√2/2
• √3/2
• -1/2
• 0

sin(5π/3)=

• 1/2
• -√3/2
• √3/2
• -1/2

Find a co-terminal angle to 90 degrees.

• -270
• 340
• -90
• 360

In which quadrant would you find an angle measuring θ = 70°

• 1
• 2
• 3
• 4

What is the reference angle for 240 degrees?

• 60 degrees
• 30 degrees
• 45 degrees
• 210 degrees

What is the reference angle for -30 degrees?

• 150 degrees

• 30 degrees

• 80 degrees

• 60 degrees

cos 5π/6

• -1/2
• 1/2
• √3/2
• -√3/2

tan 7π/4

• -1
• 1
• √2/2
• undefined

sin 2π/3

• 1/2
• -1/2
• √3/2
• -√3/2