Common Core HSF.TF.A.2 worksheet

Question 1

Convert 90° to radians (in terms of π).

• A. π
• B. 3π/2
• C. 3π/4
• D. π/2

Question 2

Find the exact value of sin 225°.

• A. −1/2
• B. √3/2
• C. −√2/2
• D. 1/2

Question 3

Is sin 330° positive, zero or negative?

• A. Positive
• B. Zero
• C. Negative

Question 4

What are the coordinates of the point on the unit circle at an angle of 150°?

• A. (−√3/2, −1/2)
• B. (−√3/2, 1/2)
• C. (1/2, −√3/2)
• D. (√3/2, 1/2)

Question 5

Find the exact value of sin(5π/6).

• A. −√2/2
• B. 1/2
• C. −1/2
• D. √3/2

Question 6

θ is in the second quadrant. Is sin θ positive or negative?

• A. Positive
• B. Negative

Question 7

What is the reference angle for 144°?

Answer 

Question 8

Without a calculator, is cos 263° positive or negative?

• A. Positive
• B. Negative

Question 9

Convert π/6 radians to degrees.

Answer 

Question 10

Find the exact value of cos 330°.

• A. √2/2
• B. √3/2
• C. 1/2
• D. −√2/2

Question 11

Is cos 210° positive, zero or negative?

• A. Positive
• B. Zero
• C. Negative

Question 12

What are the coordinates of the point on the unit circle at an angle of 60°?

• A. (√3/2, 1/2)
• B. (1/2, √3/2)
• C. (1/2, −√3/2)
• D. (−1/2, √3/2)

Question 13

Find the exact value of sin(3π/4).

• A. 1/2
• B. −1/2
• C. √2/2
• D. √3/2

Question 14

θ is in the fourth quadrant. Is cos θ positive or negative?

• A. Positive
• B. Negative

Question 15

What is the reference angle for 335°?

Answer 

Question 16

Without a calculator, is tan 8° positive or negative?

• A. Positive
• B. Negative