Arc Length Using Radians

• 12π cm

• 27π cm

• 12 cm

• 27 cm

What is the approximate length of the arc subtended by an angle of 4π/3 radians on a circle with a radius of 6.00 meters?

• 12.57 meters

• 14.14 meters

• 25.13 meters

• 28.27 meters

A circle has radius 12 inches. A central angle intercepts an arc of length 36 inches. What is the radian measure of the central angle?

• 3 radian

• 2 radian

• 6 radian

• 9 radian

Find the arc length

• 7 cm

• 28π cm

• 7π cm

• 28 cm

How does the process for finding the arc length differ from the process for finding the sector area?

• The arc length is a degree while the sector area is labeled in square units.

• The arc length uses π while the sector area does not always use π.

• The arc length and sector area are always equal.

• The arc length requires using the circumference while sector area requires the circle area formula.