1/22 Trig Ratios

Which Trig function do you use?

(hint: mark the sides h, a, o; think: which sides have info, so which ratio should you use?)

• Sine

• Cosine

• Tangent

Which Trig function do you use?

• Sine
• Cosine
• Tangent

What would you use to solve for a?

• sin
• cos
• tan
• Pythagorean theorem

Sin means

• opposite / hypotenuse

• adjacent / hypotenuse

• opposite / adjacent

• adjacent / opposite

Tags

CCSS.HSG.SRT.C.6

What is "tan" short for?

• Tangelo

• Tangent

• Tan

• Try Again Now

Tags

CCSS.HSG.SRT.C.8

Remember that  $Cos=\frac{adjacent}{hypotenuse}$  , so mark your reference angle and  label the sides h, a, & o; then substitute the lengths of the adjacent and hypotenuse to find the radio.

• A

• B

• C

• D

Remember that Tan =opp./adj. , so mark your reference angle and label the sides h, a, & o; then substitute the lengths of the adjacent and hypotenuse to find the radio.

• A

• B

• C

• D

What is the longest side of a right triangle called?

• Leg A
• Leg B
• Hypotenuse
• Pythagoras' Big Buddy

Remember that Tan= opp./adj. , so mark your reference angle and label the sides h, a, & o; then substitute the lengths of the adjacent and hypotenuse to find the radio.

• A

• B

• C

• D

Remember that Tan= opp./adj. , so mark your reference angle and label the sides h, a, & o; then substitute the lengths of the adjacent and hypotenuse to find the radio.

• 27/36

• 27/45

• 45/36

• 45/27