How do you find the length of the hypotenuse using the Pythagorean theorem?

To find the hypotenuse, use the formula: $$c = \text{sqrt}(a^2 + b^2)$$ .

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

The relationship can be expressed as: $$\text{tan} = \frac{\text{sin}}{\text{cos}}$$ .

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

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

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

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

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

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

If the opposite side is 3 and the adjacent side is 4, what is the tangent ratio?

The tangent ratio is $$\frac{3}{4}$$ .

If the hypotenuse is 5 and the opposite side is 3, what is the sine ratio?

The sine ratio is $$\frac{3}{5}$$ .

If the adjacent side is 4 and the hypotenuse is 5, what is the cosine ratio?

The cosine ratio is $$\frac{4}{5}$$ .

Trig Ratio Basics Flashcards

Student preview

15 questions

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1.

FLASHCARD QUESTION

Front

What is the definition of the opposite side in a right triangle?

Back

The opposite side is the side opposite to the angle in question.

2.

FLASHCARD QUESTION

Front

What is the definition of the adjacent side in a right triangle?

Back

The adjacent side is the side next to the angle in question, excluding the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

3.

FLASHCARD QUESTION

Front

What is the definition of the hypotenuse in a right triangle?

Back

The hypotenuse is the longest side of a right triangle, opposite the right angle.

4.

FLASHCARD QUESTION

Front

What is the sine function in relation to a right triangle?

Back

Tags

CCSS.HSG.SRT.C.6

5.

FLASHCARD QUESTION

Front

What is the cosine function in relation to a right triangle?

Back

Tags

CCSS.HSG.SRT.C.6

6.

FLASHCARD QUESTION

Front

What is the tangent function in relation to a right triangle?

Back

Tags

CCSS.HSG.SRT.C.6

7.

FLASHCARD QUESTION

Front

What is the Pythagorean theorem?

Back

Tags

CCSS.8.G.B.8

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