Unit Circle and Trigonometry Quiz

On the unit circle, what does the x-coordinate represent?

• sin(θ)

• tan(θ)

• cos(θ)

• hypotenuse

Tags

CCSS.HSF.TF.A.2

On the unit circle, what does the y-coordinate represent?

• cos(θ)

• sin(θ)

• tan(θ)

• radius

Tags

CCSS.HSF.TF.A.2

Which quadrant contains angles between 90° and 180°?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

What is the value of sin(30°)?

• 1/2

• √3/2

• 1

• 0

Tags

CCSS.HSF.TF.A.2

What is the value of cos(60°)?

• √3/2

• 1/2

• 0

• 1

Tags

CCSS.HSG.SRT.C.7

If an angle is in Quadrant II, what can you say about the sign of its sine and cosine values?

• Both are positive

• Sine is positive, cosine is negative

• Both are negative

• Sine is negative, cosine is positive

Tags

CCSS.HSF.TF.A.2

A point on the unit circle has coordinates (1/2, √3/2). What is the angle in degrees?

• 30°

• 60°

• 90°

• 45°

Tags

CCSS.HSF.TF.A.2

If the hypotenuse of a right triangle is 1, what is the length of the side opposite a 30° angle?

• 1

• 1/2

• √3/2

• 0

Tags

CCSS.HSG.SRT.C.7

The point (0.5, 0.866) lies on the unit circle. What is the angle?

• 30°

• 45°

• 60°

• 90°

Tags

CCSS.HSF.TF.A.2

Given a point (x, y) on the unit circle, how can you determine the angle it represents?

• By using the ratio x/y

• By using the inverse sine of y

• By using the inverse cosine of x

• By using the sum of x and y

Tags

CCSS.HSF.TF.A.2