Find Trig Values Using the Unit Circle

What is the radius of a unit circle?

• 1

• 2

• 1/2

• 0

What Quadrant has -a positive sine value -a negative cosine value

• Q1

• Q2

• Q3

• Q4

What Quadrant has -a negative sine value -a negative cosine value

• Q1

• Q2

• Q3

• Q4

sin 0 =

• 0

• ¹/₂

• ^√2/₂

• ^√3/₂

• 1

sec (-60)  = ?

• 2

• -2

sin 120 = cos 330

• True

• False

Which function corresponds to y coordinate on the unit circle?

• sine

• cosine

• tangent

• secant

What radian measure corresponds to the point 

• π/4

• 3π/2

• 5π/4

• 7π/3

What is the measure of the given angle?

• 17pi/4

• 9pi/4

• -pi/4

• -7pi/4

What is the reference angle for 240 degrees?

• 60 degrees

• 30 degrees

• 45 degrees

• 210 degrees