Trigonometric Ratios

Question 1

Which statements are true for triangle LNM? Check all that apply.

Revolt · Accepted Answer

A: The side opposite ∠L is NM.; B: The side opposite ∠N is ML.; D: The hypotenuse is LN.

Question 2

Identify the triangle that contains an acute angle for which the sine and cosine ratios are equal.

Revolt · Accepted Answer

D: Option D

Question 3

Use the diagram and side lengths of triangle RST to determine the angles used for the trigonometric ratios.

Revolt · Accepted Answer

sin() =: R; tan() =: T

Question 4

What are the values of the three trigonometric ratios for angle L, in simplest form? sin(L) = cos(L) = tan(L) =

Revolt · Accepted Answer

C: 4/5

Question 5

Which statements are true regarding triangle LMN? Check all that apply.

Revolt · Accepted Answer

A: NM = x; C: LM =; E: tan(45°) = 1

Question 6

Use the diagram and side lengths of triangle RST to determine the angles used for the trigonometric ratios. sin() = tan() =

Revolt · Accepted Answer

A: R

Question 7

What additional information would be necessary to determine sin(A) without using the Pythagorean theorem? Explain.

Revolt · Accepted Answer

C: The length of BC is needed because it is the side opposite ∠A.

Question 8

5✔ 10X 50100

Revolt · Accepted Answer

C: X 50

Question 9

What is the value of tan(60°)?

Revolt · Accepted Answer

B:

Question 10

What are the angles that make the trigonometric statements true?

Revolt · Accepted Answer

A: ✔ A

Trigonometric Ratios Answers