Right Triangle Sine Cosine

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

• sine

• cosine

• tangent

• cotangent

• 6.99
• 6.33
• 13.59
• 7.83

What rule should you use?

• Sine

• Cosine

What rule should you use?

• Sine

• Cosine

What rule should you use?

• Sine

• Cosine

Which of the following formulas is the Cosine rule?

• c² = a² + b² - 4ac + cosA

• c² = a² - b² - 2abcosC

• c² = a² + b² - 2abcosC

• (cos A)/a = (cos B)/b

What is the ratio for Cosine?

• Opp/Hyp

• Opp/Adj

• Adj/Opp

• Adj/Hyp

What is the length of the side adjacent to ∠Z?

• 16

• 30

• 34

What is the ratio for Sine?

• Hyp/Opp

• Opp/Hyp

• Opp/Adj

• Adj/Opp

What is the adjacent side to <D?

• EF

• DF

• DE