Right Triangle Trigonometric Functions

What type of triangles do you use the trig ratios with?

• any type

• right triangle

• obtuse triangle

• acute triangle

Use inverse trig ratios (SOH CAH TOA) to solve for the missing angle

• 49°

• 57°

• 45°

• 54°

Solve for the missing angle

• 50.5 degrees

• 12.7 degrees

• 36.9 degrees

• 72.2 degrees

What is the length of side x?

• 6.57 cm

• 7 cm

• 7.44 cm

• 26.33 cm

In a right triangle, the acute angles have the relationship

sin (2x + 4) = cos (46).

What is the value of x?

• 20

• 21

• 24

• 25

A yacht is anchored 90 feet offshore from the base of a lighthouse.  The angle of elevation from the boat to the top of the lighthouse is 26 degrees.  The distance between the yacht and the top of the lighthouse is about 100 feet.  Which of these is nearest to the height of the lighthouse? 

• 25 feet

• 45 feet 

• 110 feet 

• 135 feet 

Find the ratio for sinA. (Reduce the fraction)

• 36/27

• 4/5

• 36/45

• 3/5

• A
• B
• C
• D

• A
• B
• C
• D

Find a.

• 3

• 6