Introduction to Right Triangle Trigonometry

What is the correct ratio?

• 7/24

• 24/7

• 7/25

• 24/25

What is a common way to remember the definitions of the trig ratios?

• SAH COH TOA

• SOA COH TOA

• SOH CAH TOA

• ADJ OPP HYP

Which trigonometric ratio is correct?

• cosC= adj/hyp

• sinC= adj/hyp

• tanC= adj/hyp

• tanC=adj/opp

What is the measure of ∠2?

• 38

• 58

• 71

• 142

Which side of the triangle is opposite of angle R?

• QP

• QR

• RP

Which side of the triangle is the hypotenuse?

• QP

• QR

• RP

Which side of the triangle is adjacent to angle R?

• QP

• QR

• RP

What is the ratio for Cosine?

• Opp/Hyp

• Opp/Adj

• Adj/Opp

• Adj/Hyp

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

• Any triangle ever

• Non-right triangles only

• Right Triangles only

• Never

What is the correct equation to solve for x ?

• tan( 46 ) = 17/x

• sin ( 46 ) = x/17

• tan (46 ) = x/17

• cos (46) = x/17