Introduction to Right Triangle Trigonometry

What trigonometric function is the reciprocal of the sine function?

• cosine

• cosecant

• secant

• cotangent

• all of the above

• longest side

• hypotenuse

• adjacent side

• opposite side

If you are given the two sides that are not the hypotenuse, which trig function should you use?

• sine

• cosine

• tangent

• cotangent

Which side is opposite angle x?

• 1

• 2

• 3

What is the ratio for Sine?

• Hyp/Opp

• Opp/Hyp

• Opp/Adj

• Adj/Opp

What is the ratio for Tangent

• Opp/Adj

• Adj/Opp

• Opp/Hyp

• Hyp/Opp

What is the ratio for Cosine?

• Opp/Hyp

• Opp/Adj

• Adj/Opp

• Adj/Hyp

In a right angled triangle ABC right angled at B. If AB is opposite side, BC is adjacent side and AC is hypotenuse. find the trigonometric ratios?

How many trigonometric ratios are their ?

• 5

• 8

• 6

• 7