Reference Angles

What is the reference angle for 125°?

• 235°

• 125°

• 75°

• 55°

Tags

CCSS.HSF.TF.A.3

What is the reference angle for -30°?

• 150°

• 30°

• 80°

• 60°

Tags

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

What is the reference angle for -310⁰?

• 50⁰

• -50⁰

• 20⁰

• 40⁰

Tags

CCSS.HSF.TF.A.2

CCSS.HSF.TF.C.8

CCSS.HSF.TF.A.4

What is the reference angle for 275°?

• 85°

• 95°

• -85°

• -95°

Tags

CCSS.HSF.TF.A.3

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

What is the reference angle?

• 43

• -43

• 47

• -47

Tags

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.3

CCSS.HSF.TF.A.1

CCSS.HSG.C.B.5

What is the reference angle?

• 48

• 138

• 132

• 42

Tags

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.3

CCSS.HSF.TF.A.1

CCSS.HSG.C.B.5

What is the value of cosine at 0

• 0
• 1/2
• 1
• √3 / 2

Tags

CCSS.HSF.TF.A.2

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

Tags

CCSS.HSF.TF.A.2

sec 3π/2

• 0
• undefined
• 1
• -1

Tags

CCSS.HSF.TF.A.2

cos 5π/6

• -1/2
• 1/2
• √3/2
• -√3/2

Tags

CCSS.HSG.SRT.C.7