Determining When to Use Sine, Cosine, or Tangent

What is the correct ratio?

• sin 40 = w/28
• cos 40 = w/28
• tan 40 = w/28
• sin 40 = 28/w

If you are given the two sides that are not the hypotenuse, which trig function should you use?

• sine
• cosine
• tangent
• cotangent

If you are given the opposite side and hypotenuse, which trig function should you use?

• sine
• cosine
• tangent
• cotangent

Tangent ratio represent

• Opp/Hyp
• Adj/Hyp
• Opp/Adj

Cosine ratio represent

• O/H
• A/H
• O/A

Which ratio would you use to solve for x?

• Sine ratio
• Cosine ratio
• Tangent ratio

Which ratio would you use to solve for x?

• Sine Ratio
• Cosine Ratio
• Tangent Ratio

Which ratio would you use to solve for x?

• Sine ratio
• Cosine ratio
• Tangent ratio

Which ratio would you use to solve for x?

• Sine ratio
• Cosine ratio
• Tangent ratio

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

• Any triangle ever
• Non-right triangles only
• Right Triangles only
• Never