Find Angle Measure in Degrees or Radians from Rotation on Coordinate Plane

• I

• II

• III

• IV

Which quadrant is 2π/3 in?

• I
• II
• III
• IV

In what quadrant is 285°

• I
• II
• III
• IV

What is the co-terminal angle of 210⁰ ?

• -30⁰
• -150⁰
• -40⁰
• 150⁰

What is the co-terminal angle of -80⁰ ?

• -10⁰
• -280⁰
• 10⁰
• 280⁰

Which of the following is a negative co-terminal angle of 165 degrees?

• -165
• 525
• -525
• -555

What is 7π/4 radians in degrees?

• 300
• 135
• 315
• 45

Find the arc length

• 12π cm

• 15π cm

• 39.375 cm

• 14π cm

The length of an arc is 18cm and the radius of the circle is 6cm. What is the radian measure of the central angle?

• 3 radian

• 2 radian

• 4 radian

• 2π radian

A central angle measure 4.5 radians and has an arc of 35 inches. What is the radius of the circle?

• 7.78 inches

• 8.21 inches

• 157.5 inches

• 7 inches