Sin/Cos of Complementary Angles

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

Sin(60°) = Cos( ?°)

Back

30°.

Front

What is the cosine of angle P?

Back

q/r.

Front

Sin(20°) = ?

Back

cos(70°).

Front

If sin x = cos x, what is the value of x?

Back

45°.

Front

What is the relationship between sin and cos of complementary angles?

Back

sin(θ) = cos(90° - θ).

Front

What is the value of sin(90°)?

Back

1.

Front

What is the value of cos(0°)?

Back

1.

Front

What is the value of sin(0°)?

Back

0.

Front

What is the value of cos(90°)?

Back

0.