Right Triangle Trigonometry with Theta

We can use SOH-CAH-TOA for...

• Any triangle ever

• Non-right triangles only

• Right Triangles only

• Never

Set up the problem...

• sin X = 41/28

• tan X = 41/28

• cos X = 28/41

• sin X = 28/41

Find the measure of the missing angle.

• 64^o

• 26^o

• 61^o

• .008^o

Find the measure of the missing angle.

• 49^o

• 50^o

• 41^o

• 33^o

Solve for the missing angle

• 50

• 0.053

• 36.9

• 95

Solve for the missing angle

• 50.2

• 93.1

• 12.6

• 42.2

How do you know which side is the OPPOSITE?

• It is next to the right angle

• It is opposite the right angle

• It is opposite the theta

• It is the bottom leg of the triangle

Fill in the blank...
SOH ___ TOA

• COH

• CAH

• COA

• CHA

Which trigonometric ratio is correct?

• cosC= adj/hyp

• sinC= adj/hyp

• tanC= adj/hyp

• tanC=adj/opp

What is the formula for Cosine?

• Adjacent/Opposite

• Adjacent/Hypotenuse

• Opposite/Adjacent

• Opposite/Hypotenuse