Radians in Circles

A rotation takes P to Q. What could be the measure of the angle of rotation in radians? Select ALL that apply.

Approximately how many radians fit in a circle?

• About 360 radians

• About 3 radians

• About 6.28 radians

• 5

1 radian around the circle's outside is equivalent to what?

• The radius

• The diameter

• π

• 2π

A wheel has a radius of 1 foot. After the wheel has traveled a certain distance in the counterclockwise direction, the point has returned to its original position. How many feet could the wheel have traveled?

Select ALL that apply.

• π/2

• π

• 2π

• 5π

• 10π

What is the size of 1 radian?

• When the arc length is the same as the radius.

• pi

• 3.14

• 6.28

Approximately how many feet will point P travel when it goes ONCE around the circle?

• About 6.28 feet

• About 3 feet

• About 360 feet

• About 12 feet

Approximately how many feet will point P travel when it goes HALFWAY around the circle?

• About 6.28 feet

• About 3.14 feet

• About 180 feet

• About 6 feet

Which point shows where point P will be after rotating 3 feet to the left?

• A

• B

• C

• D

What do Radians Measure? Select All.

• Angles

• Distances Traveled on Circles

• Pis

• Volume

What is the arc length of AB?