Complementary Angles in Trig

What is the missing number?
Sin(   ) = Cos(80)

• 5

• 10

• 15

• 20

Tags

CCSS.HSG.SRT.C.7

sin 20⁰ = ?

• cos 70⁰

• sin 70⁰

• cos 20⁰

• tan 20⁰

Tags

CCSS.HSG.SRT.C.7

Find the sine of A and the cosine of B. Describe how they are related

• sin A= cos B=8⁄15; same ratio

• sin A= cos B=8⁄17; same ratio

• sin A= cos B=17⁄15; same ratio

• sin A= cos B=15⁄17; same ratio

Tags

CCSS.HSG.SRT.C.6

Sin(60°) = Cos( ?°)

• 10

• 20

• 30

• 40

Tags

CCSS.HSG.SRT.C.7

If 𝜃 is the number of degrees of one acute angle in a right triangle, and sin(𝜃) = 3/5 , find cos (90 − 𝜃).

• 3/5

• 5/3

• 3/4

• 4/5

Tags

CCSS.HSG.SRT.C.7

Complements sum to ______ degrees.

Tags

CCSS.7.G.B.5

Complementary angles always add up to____ degrees

Tags

CCSS.7.G.B.5

Complementary angles always add up to

Tags

CCSS.7.G.B.5

A pair of angles that add up to 90º

• Complementary

• Complimentary

• Supplementary

Tags

CCSS.7.G.B.5