Find the Missing Angle Right Triangle Trig

Find the ratio for sinA. (Reduce the fraction)

• 36/27

• 4/5

• 36/45

• 3/5

What can you find with trig ratios (sin, cos, tan)?

• Missing sides

• missing angles

• area of a triangle

• missing sides, angles and area of a triangle

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

• any type

• right triangle

• obtuse triangle

• acute triangle

Find sinA

• 32/24

• 24/32

• 24/40

• 32/40

Find sinC

• 28/35

• 35/28

• 21/35

• 28/21

Find cosA

• 30/16

• 30/15

• 30/34

• 16/34

Find cosC

• 34/16

• 30/34

• 16/30

• 16/34

In SOHCAHTOA what does O stand for?

• Outside

• Opposite

• Over

• Order

Solve for the missing angle

• 50.2

• 93.1

• 12.6

• 42.2

We can use SOH-CAH-TOA for...

• Any triangle ever

• Non-right triangles only

• Right Triangles only

• Never