If $$\text{cos}(\theta) = \frac{4}{5}$$ , what is the adjacent side if the hypotenuse is 10?

The adjacent side can be found using the formula: $$\text{adjacent} = \text{cos}(\theta) \times \text{hypotenuse} = \frac{4}{5} \times 10 = 8$$ .

If $$\text{sin}(\theta) = \frac{3}{5}$$ , what is the opposite side if the hypotenuse is 15?

The opposite side can be found using the formula: $$\text{opposite} = \text{sin}(\theta) \times \text{hypotenuse} = \frac{3}{5} \times 15 = 9$$ .

What is the value of $$\text{cos}(0)$$ ?

The value of $$\text{cos}(0)$$ is 1.

What is the value of $$\text{sin}(90)$$ ?

The value of $$\text{sin}(90)$$ is 1.

What is the value of $$\text{tan}(45)$$ ?

The value of $$\text{tan}(45)$$ is 1.

What is the Pythagorean identity involving sine and cosine?

The Pythagorean identity is $$\text{sin}^2(\theta) + \text{cos}^2(\theta) = 1$$ .

How do you solve for an angle using cosine?

To solve for an angle using cosine, use the inverse cosine function: $$\theta = \text{cos}^{-1}igg(\frac{\text{adjacent}}{\text{hypotenuse}}igg)$$ .

How do you solve for an angle using sine?

To solve for an angle using sine, use the inverse sine function: $$\theta = \text{sin}^{-1}igg(\frac{\text{opposite}}{\text{hypotenuse}}igg)$$ .

18.2 Flashcard- Sine and Cosine Ratios Flashcards

Student preview

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the cosine ratio?

Back

Tags

CCSS.HSG.SRT.C.6

2.

FLASHCARD QUESTION

Front

What is the sine ratio?

Back

Tags

CCSS.HSG.SRT.C.6

3.

FLASHCARD QUESTION

Front

What is the tangent ratio?

Back

Tags

CCSS.HSG.SRT.C.6

4.

FLASHCARD QUESTION

Front

How do you find the cosine of an angle?

Back

Tags

CCSS.HSG.SRT.C.6

5.

FLASHCARD QUESTION

Front

How do you find the sine of an angle?

Back

Tags

CCSS.HSG.SRT.C.6

6.

FLASHCARD QUESTION

Front

How do you find the tangent of an angle?

Back

Tags

CCSS.HSG.SRT.C.6

7.

FLASHCARD QUESTION

Front

What is the relationship between sine, cosine, and tangent?

Back

Tags

CCSS.HSG.SRT.C.6

Create a free account and access millions of resources

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

10 questions

Disney descendants flashcard

Flashcard

•

KG

11 questions

Unit 1 | Topic 2 | Key Terms - Flashcards

Flashcard

•

9th - 12th Grade

10 questions

Twelfth Night

Flashcard

•

10th Grade

8 questions

MAT_8_EF_QN01-QN08

Flashcard

•

8th Grade - University

10 questions

Mathematics Glossary

Flashcard

•

KG

15 questions

Function Operations and Composite Functions

Flashcard

•

9th Grade - University

10 questions

2025 S3/4 CCKS Enzymes

Flashcard

•

8th Grade - University

Popular Resources on Wayground

25 questions

Multiplication Facts

Quiz

•

5th Grade

15 questions

4:3 Model Multiplication of Decimals by Whole Numbers

Quiz

•

5th Grade

10 questions

The Best Christmas Pageant Ever Chapters 1 & 2

Quiz

•

4th Grade

12 questions

Unit 4 Review Day

Quiz

•

3rd Grade

20 questions

Christmas Trivia

Quiz

•

6th - 8th Grade

18 questions

Kids Christmas Trivia

Quiz

•

KG - 5th Grade

14 questions

Christmas Trivia

Quiz

•

5th Grade

15 questions

Solving Equations with Variables on Both Sides Review

Quiz

•

8th Grade

Discover more resources for Mathematics

5 questions

Triangle Congruence Theorems

Interactive video

•

9th - 12th Grade

20 questions

Triangle Congruence Theorems

Quiz

•

9th Grade

20 questions

Solving One-Step Equations

Quiz

•

6th - 9th Grade

15 questions

Graphing Systems of Equations

Quiz

•

8th - 9th Grade

20 questions

Function or Not a Function

Quiz

•

8th - 9th Grade

14 questions

Model and Solve Linear Equations

Quiz

•

9th - 12th Grade

10 questions

Test Your Christmas Trivia Skills

Interactive video

•

6th - 10th Grade

17 questions

Identify Linear and Nonlinear Functions

Quiz

•

8th - 12th Grade