Solving Missing Sides of Triangle Using Trig Functions

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

• 9.4

• 55.2

• 20.15

• 19.4

Set up the problem...

• sin X = 41/28

• tan X = 41/28

• cos X = 28/41

• sin X = 28/41

Solve for the missing angle

• 50

• 0.053

• 36.9

• 95

What is the ratio for Cosine?

• Opp/Hyp

• Opp/Adj

• Adj/Opp

• Adj/Hyp

Find side AB?

• 20 m

• 5 m

• 11.54 m

• 8.66 m

Which Trig function do you use?

• Sine

• Cosine

• Tangent

Find the length of side W.

• 186.86 m

• 75.50 m

• 28.28 m

• .01 m

Use inverse trig ratios (SOH CAH TOA) to solve for the missing angle

• 49°

• 57°

• 45°

• 54°

• 27.1
• 74.8
• 35.9
• 56.3

Find the length of the missing side x... Round your answer to 1 decimal place.

• 15.1 cm

• 15.2 cm

• 10.1 cm

• 10.2 cm