What is the formula for finding the cosine of an angle?

The formula for finding the cosine of an angle is: $$\text{cosine} = \frac{adj}{hyp}$$ .

What is the formula for finding the tangent of an angle?

The formula for finding the tangent of an angle is: $$\text{tangent} = \frac{opp}{adj}$$ .

What is the inverse sine function?

The inverse sine function, denoted as $$\text{sin}^{-1}$$ , is used to find the angle when the sine value is known.

What is the inverse cosine function?

The inverse cosine function, denoted as $$\text{cos}^{-1}$$ , is used to find the angle when the cosine value is known.

What is the inverse tangent function?

The inverse tangent function, denoted as $$\text{tan}^{-1}$$ , is used to find the angle when the tangent value is known.

What mode should your calculator be in for trigonometric functions?

Your calculator should be in 'Degree' mode when working with angles measured in degrees.

How do you find the adjacent side in a right triangle?

To find the adjacent side, use the cosine function: $$\text{adj} = \text{hyp} \times \text{cos}(\theta)$$ .

How do you find the opposite side in a right triangle?

To find the opposite side, use the sine function: $$\text{opp} = \text{hyp} \times \text{sine}(\theta)$$ .

Right Triangle Trig Flashcards

Student preview

15 questions

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1.

FLASHCARD QUESTION

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

Tags

CCSS.4.G.A.2

2.

FLASHCARD QUESTION

Front

What are the sides of a right triangle called?

Back

The sides of a right triangle are called the opposite side, adjacent side, and hypotenuse.

3.

FLASHCARD QUESTION

Front

What is 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?

Back

Tags

CCSS.HSG.SRT.C.6

5.

FLASHCARD QUESTION

Front

What is the cosine function?

Back

Tags

CCSS.HSG.SRT.C.6

6.

FLASHCARD QUESTION

Front

What is the tangent function?

Back

Tags

CCSS.HSG.SRT.C.6

7.

FLASHCARD QUESTION

Front

What is the formula for finding the sine of an angle?

Back

Tags

CCSS.HSG.SRT.C.6

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