Missing Angle Using Trigonometric Identities

Find the ratio for sin C. 

Find the ratio for cos A.

Find tangent of θ.

Solve for the missing angle

• 32°
• 44°
• 61°
• 50°

Which trig ratio could we use to determine angle A?

What is the ratio for Sine?

• Hyp/Opp
• Opp/Hyp
• Opp/Adj
• Adj/Opp

What is the ratio for Tangent

• Opp/Adj

• Adj/Opp

• Opp/Hyp

• Hyp/Opp

What is the ratio for Cosine?

• Opp/Hyp
• Opp/Adj
• Adj/Opp
• Adj/Hyp

Find the measure of the indicated angle (?) to the nearest degree.

• 9

• 55

• 20

• 19