Identify the trig ratio that may be used to find the marked unknown side.

S i n 38 ° = h 15 Sin\ 38\degree\ =\ \frac{h}{15} S i n 3 8 ° = 1 5 h

S i n 38 ° = 15 h Sin\ 38\degree\ =\ \frac{15}{h} S i n 3 8 ° = h 1 5

C o s 38 ° = 15 h Cos\ 38\degree\ =\ \frac{15}{h} C o s 3 8 ° = h 1 5

T a n 38 ° = h 15 Tan\ 38\degree=\ \frac{h}{15} T a n 3 8 ° = 1 5 h

Identify the trig ratio that may be used to find the marked unknown side.

T a n 29 ° = 91 x Tan\ 29\degree\ =\ \frac{91}{x} T a n 2 9 ° = x 9 1

S i n 29 ° = x 91 Sin\ 29\degree=\frac{x}{91} S i n 2 9 ° = 9 1 x

C o s 29 ° = x 91 Cos\ 29\degree\ =\ \frac{x}{91} C o s 2 9 ° = 9 1 x

T a n 29 ° = x 91 Tan\ 29\degree=\ \frac{x}{91} T a n 2 9 ° = 9 1 x

Identify the trig ratio that may be used to find the marked unknown angle.

T a n y ° = 12 18 Tan\ y\degree=\ \frac{12}{18} T a n y ° = 1 8 1 2

S i n y ° = 12 18 Sin\ y\degree=\frac{12}{18} S i n y ° = 1 8 1 2

C o s y ° = 18 12 Cos\ y\degree\ =\ \frac{18}{12} C o s y ° = 1 2 1 8

C o s y ° = 12 18 Cos\ y\degree\ =\ \frac{12}{18} C o s y ° = 1 8 1 2

Identify the trig ratio that may be used to find the marked unknown side.

C o s 38 ° = 15 w Cos\ 38\degree\ =\ \frac{15}{w} C o s 3 8 ° = w 1 5

S i n 38 ° = w 15 Sin\ 38\degree=\frac{w}{15} S i n 3 8 ° = 1 5 w

T a n 38 ° = w 15 Tan\ 38\degree\ =\ \frac{w}{15} T a n 3 8 ° = 1 5 w

S i n 38 ° = 15 w Sin\ 38\degree=\ \frac{15}{w} S i n 3 8 ° = w 1 5

TRIGONOMETRIC RATIOS

Authored by Mary Beloy

Mathematics

9th Grade

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the ratio for Sine?

Hyp/Opp

Opp/Hyp

Opp/Adj

Adj/Opp

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the ratio for Cosine?

Opp/Hyp

Opp/Adj

Adj/Opp

Adj/Hyp

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What side is considered the hypotenuse?

The shortest side

the side opposite the smallest angle

the side opposite the right angle

the side opposite the shortest leg

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the length of the hypotenuse side?

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the length of the adjacent side?

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the length of the opposite side?

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Choose the correct ratio.

cos(33)=x/14

sin(33)=x/14

cos(33)=14/x

sin(33)=14/x

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TRIGONOMETRIC RATIOS

What is the ratio for Sine?

What is the ratio for Cosine?

What side is considered the hypotenuse?

What is the length of the hypotenuse side?

What is the length of the adjacent side?

What is the length of the opposite side?

Choose the correct ratio.

cos 87

tan 51

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