Exploring Trigonometric Functions on the Unit Circle

What is the radius of a unit circle?

• 1 unit

• 2 units

• 0.5 units

• 10 units

What does the term 'periodic' refer to in mathematics?

• A function repeating over time

• A function increasing over time

• A function decreasing over time

• A function remaining constant

Which point does the real number 2π correspond to on the unit circle?

• (0,-1)

• (-1,0)

• (0,1)

• (1,0)

What is the abbreviation for cosine?

• sec

• csc

• cot

• cos

Which trigonometric function is defined as opposite over adjacent?

• Cosine

• Sine

• Secant

• Tangent

What is the reciprocal of sine known as?

• Secant

• Cosecant

• Cosine

• Cotangent

In the context of the unit circle, if the radius is 1, what does theta equal?

• t

• 2π

• 1/2π

• π

What is the radian measure for 90 degrees?

• π

• π/4

• π/2

• 2π

How many radians are in 180 degrees?

• π/2

• 2π

• π

• π/4

What is the degree measure equivalent to π/6 radians?

• 30 degrees

• 45 degrees

• 90 degrees

• 60 degrees