Find Arc Length and Radians

Find the arc length of the bolded arc.

• A

• B

• C

• D

Find the arc length

• 7 cm

• 28π cm

• 7π cm

• 28 cm

Find the arc length indicated by the bolded arc. 

• 75.7 in

• 84.2 in

• 55.6 in

• 22.3 in

What is 90 degrees in radians? 

• π/4

• π/2

• π/6

• 3π/2

What is 270 degrees in radians? 

• π/4

• 3π/2

• 3π/4

• π/2

• 12π cm

• 27π cm

• 12 cm

• 27 cm

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

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

• 114π/5 ft

• 2850 ft

• 95π/6 ft

• 150π/19 ft

• A

• B

• C

• D