Trigonometry

What are the coordinates of 60° on the unit circle?

• (0, 1)
• (1/2, √3/2)
• (√3/2, 1/2)
• (√2/2, 1/2)

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

What are the coordinates of  210° on the unit circle?

• (−√3/2, −1/2)
• (√3/2, −1/2)
• (−√3/2, 1/2)
• (−1/2,−√3/2 )

Tags

CCSS.HSF.TF.A.2

What is sin 30°?

• ^√3/₂
• 1
• ½
• ^√2/₂

What is sin 45°?

• 1
• ^√3/₂
• ½
• ^√2/₂

What is cos 60°?

• ½
• ^√3/₂
• ^√2/₂
• 1

What is the radius of a unit circle?

• 1
• 2
• 1/2
• 0

Tags

CCSS.HSF.TF.A.1

CCSS.HSG.C.B.5

CCSS.HSG.GPE.A.1

cos(π)=

• 0
• 1
• -1
• 1/2

Tags

CCSS.HSF.TF.A.1

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.3

• 7/25

• 24/7

• 25/7

• 25/24

• 5/3

• 3/5

• 4/3

• 4/5

Convert to degrees

• -270 degrees

• -135 degrees

• -130 degrees

• -140 degrees

Tags

CCSS.HSF.TF.A.1

CCSS.HSF.TF.A.2

CCSS.HSG.C.B.5