What is the reference angle for $$\frac{5\text{π}}{6}$$ ?

The reference angle for $$\frac{5\text{π}}{6}$$ is $$\frac{\text{π}}{6}$$ .

What is the sine of $$\frac{3\text{π}}{2}$$ ?

The sine of $$\frac{3\text{π}}{2}$$ is -1.

What is the cosine of $$\frac{2\text{π}}{3}$$ ?

The cosine of $$\frac{2\text{π}}{3}$$ is - $$\frac{1}{2}$$ .

In which quadrant is $$\frac{5\text{π}}{4}$$ located?

$$\frac{5\text{π}}{4}$$ is located in Quadrant III.

What is the tangent of $$\frac{5\text{π}}{6}$$ ?

The tangent of $$\frac{5\text{π}}{6}$$ is - $$\frac{1}{\text{√3}}$$ .

What are the side lengths of a 45-45-90 triangle with a hypotenuse of 10?

The side lengths are $$5\text{√2}$$ for both legs.

What is the formula for the tangent function?

The tangent function is defined as $$\tan(\theta) = \frac{\text{opposite}}{\text{adjacent}}$$ .

What is the value of $$\tanigg(\frac{5\text{π}}{6}igg)$$ ?

The value of $$\tanigg(\frac{5\text{π}}{6}igg)$$ is - $$\frac{\text{√3}}{3}$$ .

What is the angle measure of 15° in radians?

15° is equal to $$\frac{\text{π}}{12}$$ radians.

What is the sum of angles in a triangle?

The sum of angles in a triangle is always 180° or $$\text{π}$$ radians.

Radians & Degrees REVIEW Flashcards

Student preview

15 questions

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1.

FLASHCARD QUESTION

Front

What is a radian?

Back

A radian is a unit of angular measure defined as the angle subtended at the center of a circle by an arc equal in length to the radius of the circle.

Tags

CCSS.HSF.TF.A.1

2.

FLASHCARD QUESTION

Front

How do you convert degrees to radians?

Back

Tags

CCSS.HSF.TF.A.1

3.

FLASHCARD QUESTION

Front

How do you convert radians to degrees?

Back

Tags

CCSS.HSF.TF.A.1

4.

FLASHCARD QUESTION

Front

What is the reference angle?

Back

The reference angle is the acute angle formed by the terminal side of an angle and the x-axis.

5.

FLASHCARD QUESTION

Front

How do you find the reference angle for an angle in radians?

Back

6.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.HSF.TF.B.7

7.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.HSF.TF.A.2

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