Intro to Trig Ratios

Label the parts of the right triangle for the indicated reference angle.

a

b

c

Hypotenuse

OPPOSITE Leg

ADJACENT Leg

Label the sides of the right triangle for the indicated reference angle.

a

b

c

ADJACENT Leg

OPPOSITE Leg

Hypotenuse

Label the sides of the right triangle for the indicated reference angle.

a

b

c

Hypotenuse

OPPOSITE Leg

ADJACENT Leg

sin(θ) =​ (a)   , cos(θ) =​ (b)   , tan(θ) = ​ (c)  

sin(θ) =​ (a)   , cos(θ) =​ (b)   , tan(θ) =​ (c)  

sin(θ) =​ (a)   , cos(θ) =​ (b)   , tan(θ) =​ (c)  

Which of the following are true based on the triangle shown?

Identify which statements are true and which are false based on the triangle shown.

Groups:

(a) TRUE

,

(b) FALSE

Which is the correct trig equation to find the value of x?

Find the value of x.

• 10.8

• 23.9

• 13.6

• 14.4