Finding Lengths Using Trig

Find x.

• 16.3

• 17.7

• 17.9

• 20.5

Solve for x. Round to the nearest tenth.

• 9.8

• 0.1

• 0.038

• 9.9

Set up the problem...

• sin X = 41/28

• tan X = 41/28

• cos X = 28/41

• sin X = 28/41

What is the acronym to help you remember the ratios to use in trigonometry?

• RIGHTANG

• SOHCAHTOA

• SHOCHATOA

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

• any type

• right triangle

• obtuse triangle

• acute triangle

What is the correct equation to solve for x ?

• tan (58) = x/11

• tan (58) = 11/x

• cos (58) = x/11

• sin (58) = x/11

Tangent ratio represents

• O/H

• A/H

• O/A

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

• Any triangle ever

• Non-right triangles only

• Right Triangles only

• Never

If you are given the adjacent side and hypotenuse, which trig function should you use?

• sine

• cosine

• tangent

If you are given the opposite side and hypotenuse, which trig function should you use?

• sine

• cosine

• tangent