Reference Angles

What is the reference angle for 240 degrees?

• 60 degrees
• 30 degrees
• 45 degrees
• 210 degrees

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.A.4

CCSS.HSF.TF.C.8

What is the reference angle for 30 degrees?

• 70 degrees
• 30 degrees
• 150 degrees
• 330 degrees

What is the reference angle for 125 degrees?

• 235 degrees
• 125 degrees
• 75 degrees
• 55 degrees

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

What is the reference angle for 275 degrees?

• 85 degrees
• 95 degrees
• -85 degrees
• -95 degrees

Tags

CCSS.HSF.TF.A.3

What is the reference angle for 11π/6

• π/6
• π/3
• 2π/6
• 5π/6

Tags

CCSS.HSF.TF.B.7

What is the reference angle for 2π/3

• π/4
• 7π/6
• 4π/3
• π/3

Tags

CCSS.HSF.TF.B.7

Which of the following is closest to the measure of the angle shown?

• 7/10 π
• 3/8 π
• 7/20 π
• 3/2 π

Tags

CCSS.4.MD.C.6

Which of the following is closest to the measure of the angle shown?

• 30º
• 40º
• 395º
• 440º

Which of the following is closest to the measure of the reference angle, shown in red? 

• –1/6 π
• 1/6 π
• –1/3 π
• 1/3 π

What is the reference angle for an angle measuring 7π / 4?

• 7π / 4

• π / 4

• 3π / 4

• -π / 4

Tags

CCSS.HSF.TF.B.7