Introduction to Trigonometry

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

• Any triangle ever

• Non-right triangles only

• Right Triangles only

• Never

The ratio in a right triangle of adjacent to hypotenuse is _____

• sine

• cosine

• tangent

• inverse cosine

 Find side AB?

• 20 m

• 5 m

• 11.54 m

• 8.66 m

Choose the correct ratio.

• A

• B

• C

• D

Choose the correct ratio.

• sin(37)=x/14

• cos(37)=x/14

• tan(37)=x/14

• sin(37)=14/x

Find the length of side w.

• 21.4 cm

• 18.0 cm

• 36.5 cm

• 43.6 cm

Solve for x.

• 24.20

• 4.92

• 290.4

• 29.75

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4

• 55.2

• 20.15

• 19.4

Solve for the misssing distance

• 18.9

• 19.5

• 47

• 27.5

Solve for x.

• 10

• 11.3

• 12.0

• 15.0