Reference Angles Unit Circle

What is the reference angle?

• 163

• 73

• 27

• 107

What is the reference angle for 125°?

• 235°

• 125°

• 75°

• 55°

What is the reference angle for -30°?

• 150°

• 30°

• 80°

• 60°

• 
• 
• 
• 

Tags

CCSS.HSF.TF.A.2

Tags

CCSS.HSF.TF.A.2

Find the exact value of the trig function.

• 0

• 1

• -1

Tags

CCSS.HSF.TF.A.2

What is the reference angle for 275°?

• 85°

• 95°

• -85°

• -95°

What is the reference angle (theta) in degrees?

• 135

• 30

• 45

• 60

Using θ as a reference angle, mark the triangle sides as Opp, Adj, and Hyp. Label these on the triangle on your paper.

• Adj

• y

• Opp

• OP

• Hyp

• x

Tags

CCSS.HSG.SRT.C.6