Trigonometry Quiz

What are the coordinates of the point on the unit circle that corresponds to an angle of 90°?

• (0, 1)

• (1, 0)

• (-1, 0)

• (0, -1)

Which of the following angles has a sine value of sqrt(2)/2?

• 45°

• 90°

• 180°

• 270°

At what angle in degrees are the cosine and secant functions negative on the unit circle?

• 90°

• 180°

• 270°

• 360°

What is the radian measure corresponding to an angle of 225°?

• 5pi/6

• 7pi/4

• 5pi/4

• pi/2

Which trigonometric functions are positive at an angle of 150°?

• sin, cos

• tan, cot

• sin, csc

• cos, sec

pi/6

• (sqrt3/2, 1/2)

• (1/2, sqrt3/2)

• (sqrt2/2, sqrt2/2)

• 1

pi/4

• (1/2, sqrt3/2)

• 1

• 0

• (sqrt2/2, sqrt2/2)

pi/3

• 0

• (sqrt3/2, 1/2)

• (1/2, sqrt3/2)

• 1

pi/2

• (0,-1)

• (0,1)

• (1,0)

• (0,0)

2pi

• (0,0)

• (1,0)

• (0,1)

• (-1,0)