Trig ratios

• opposite
• adjacent
• hypotenuse
• c
• a

c

b

a

hypotenuse

• adjacent= c

  hypo= 8

• adjacent= 8

  hypo= c

• adjacent= b

  hypo= c

• adjacent= 25

  hypo= c

• adjacent= 8

  hypo= 25

Which of the following correctly set-up the trig ratio to solve for b?

Match the following terms to the correct relationship or definition about a right triangle.

• ratio of

  adjacent leg / hypotenuse

• hypotenuse

• ratio of opposite leg / adjacent leg

• tan

• the side opposite the right angle

• cos

• ratio of

  opposite leg / hypotenuse

• leg

• the two sides of a right triangle that are NOT the hypotenuse

• sin

The popular acronym used to remember the trigonometric ratios

• SOH

  COA

  TAH

• SOH

  CAH

  TOA

• SAH

  COH

  TOA

• SOH

  CAH

  TAO

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

• sine
• cosine
• tangent
• cotangent

Which ratio represents the tan(θ)?

Find cos(θ).

• cosine
• sine
• tangent