Tangent Unit Circle

If the tangent of an angle on the unit circle is 1, what is the measure of the angle in degrees?

• 30 degrees

• 60 degrees

• 90 degrees

• 45 degrees

Find the tangent of the angle 45 degrees on the unit circle.

• 2

• 1.5

• 0.707

• 1

• 0.5

If the tangent of an angle on the unit circle is -1, what is the measure of the angle in degrees?

• 180 degrees

• 45 degrees

• 270 degrees

• 315 degrees

AD is tangent and AC is a diameter. Find the measure of arc AB.

• 36

• 90

• 72

• 54

Name the tangent line. 

• s

• WR

• VT

• QR

• 54

• 90

• 306

• 126

Is BD tangent to the circle?

• Yes

• No

Find the length of segment AC, assuming all segments that appear to be tangent are tangent.

Calculate the tangent of the angle 60 degrees on the unit circle.

• 0.5

• √3

• 1

• 2

If the tangent of an angle on the unit circle is 0, what is the measure of the angle in degrees?

• 90 degrees

• 0 degrees or 180 degrees

• 45 degrees

• 270 degrees