Angles Pre Cal

What is the reference angle?

• 48

• 138

• 132

• 42

Which quadrant is 2π/3 in?

• I

• II

• III

• IV

What is the reference angle for 125°?

• 235°

• 125°

• 75°

• 55°

Which side of the triangle is the adjacent?

• y

• u

• v

• t

If you are given the hypotenuse and an adjacent side, which trig function should you use?

• sine

• cosine

• tangent

• cotangent

Two rays with a common vertex

• Ray

• Vertex

• Angle

When the rotation from initial to terminal side is counterclockwise this describes. 

• Positive Angle

• Negative Angle

When the rotation from initial to terminal side is clockwise this describes. 

• Positive Angle

• Negative Angle

An angle is in standard position if the initial side is along the _______?

• positive y-axis

• positive x-axis

• negative y-axis

• negative x-axis

Convert from radians to degrees. π/6

• 30°

• 45°

• 90°

• 120°