Right Triangle Trig Ratios Missing Angles and Sides

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

• RIGHTANG

• SOHCAHTOA

• SHOCHATOA

What can you find with trig ratios?

• Missing sides

• missing angles

• area of a triangle

• missing sides, angles and area of a triangle

What does SOH stand for

• hypotenuse over opposite

• adjacent over opposite
  opposite over adjacent

• opposite over hypotenuse

• adjacent over adjacent

Choose the correct ratio.

• sinZ=5/13

• sinX=5/13

• cosX=13/12

• tanZ=12/5

What is the length of the adjacent side?

• 8

• 15

• 17

What is the side across from the right angle called?

• Leg

• Pythagoras

• Hypotenuse

• Altitude

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 can you find with trig ratios?

• Missing sides

• missing angles

• area of a triangle

• missing sides and angles