Sine Cosine Complementary

Find the trig value.

• A

• B

• C

• D

Find the trig value.

• A

• B

• C

• D

Find the trig value.

• A

• B

• C

• D

Find the trig value.

• A

• B

• C

• D

If sin x = cos y, what must be true about x and y?

• x + y = 90⁰

• x = y 

• x = 2y

If cos α = sin β, what must be true about α and β?

• α and β are complementary angles

• α and β are congruent angles

• α and β are right angles

• Cos (37)

• 12/15

• Sin (37)

• 15 * Sin(37)

Select all that apply: What is true in respect to the relationship of the sine and cosine of complementary angles? A and B are the acute angles of the right triangle. 

cos 60⁰ = sin θ. What is θ ?

• 30⁰

• 60⁰

• 45⁰

cos 38⁰ = sin θ. What is θ ?

• 62⁰

• 52⁰

• 38⁰