Sine and Cosine Complementary

What is the missing number?
Sin(   ) = Cos(60)

• 20

• 25

• 30

• 35

What is the missing number?
Sin(90) = Cos(   )

• 0

• 10

• 20

• 30

In SOH, what does S stand for?

• Sign

• Sinner

• Sine

• Solve

What is the complement to: cos 40⁰ = ?

• sin 50⁰

• cos 50⁰

• tan 50⁰

• sin 40⁰

What is the complement to: sin 20⁰ = ?

• cos 70⁰

• sin 70⁰

• cos 20⁰

• tan 20⁰

What is the complement to: cos 38⁰ = ?

• sin 62⁰

• sin 52⁰

• cos 52⁰

• sin 38⁰

If sin(β) = ⅝ . What is cos(α)?

• ^⅜

• ⅛

• ⅝

• ⅞

In complementary angles of right triangles, the sine of one is the ________ of the other.

• Sine

• Cosine

• Tangent

• None

Find the measure of the side across from the right angle in a triangle with a 35 degree angle whose adjacent side is 12. Round to the nearest whole number.

• 17

• 21

• 14

• 15

In right triangle ABC, ∠A and ∠B are complementary angles.  The value of cos A = 5/13.  What is the value of sin B?

• 5/13

• 12/13

• 13/12

• 13/5