Right Triangle Trigonometry with Theta

What is the length of the opposite side?

• 8

• 15

• 17

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

• RIGHTANG

• SOHCAHTOA

• SHOCHATOA

What is the ratio for tangent?

• O/A

• A/O

• A/H

• O/H

What is the ratio for sine?

• O/H

• H/A

• H/O

• O/A

What is the ratio for cosine?

• H/A

• O/A

• A/H

• A/O

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

• any type

• right triangle

• obtuse triangle

• acute triangle

What can you find with trig ratios?

• Missing sides

• missing angles

• area of a triangle

• missing sides and angles

What does Θ represent?

• An unknown shape

• An unknown length

• An unknown angle measure

• The hypotenuse of a triangle

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

• 9.4

• 55.2

• 20.15

• 19.4