Radian Measure and Unit Circle Trig

Using the Unit Circle, find the exact value of this trig function.

• 1

• 0

• -1

• undefined

• The correct answer is not listed

What is the measure of the given angle?

• 17pi/4

• 9pi/4

• -pi/4

• -7pi/4

What radian measure corresponds to the point 

• π/4

• 3π/2

• 5π/4

• 7π/3

sin 0 =

• 0

• ¹/₂

• ^√2/₂

• ^√3/₂

• 1

cos π =

• 0

• 1

• -1 

• undefined

Based on the unit circle, what is the value of sin?

• y

• x

• x/y

• y/x

True or False?

sin 120 = cos 330

• True

• False

Which function corresponds to y coordinate on the unit circle?

• sine

• cosine

• tangent

• secant

What is a complete circle in radians?

• π

• 2π

• 1/2 π

• 1