Find the Arc Length
Work Backwards
100

Find L if r = 9 cm and θ = π/3 radians.

What is 3π cm

100

Find θ if L = 12π cm and r = 6 cm.

What is 2π radians

200

Find L if r = 14 ft and θ = π/2 radians.

What is 7π feet

200

Find r if L = 15π ft and θ = 5π/3 radians.

What is 9 ft

300

Find L if r = 6 in and θ = 5π/4 radians.

What is 15π/2 in

300

Find θ if L = 21π/2 in and r = 7 in.

What is 3π/2 radians

400

Find L if r = 20 m and θ = 3π/10 radians.

What is 6π m

400

Find r if L = 18π m and θ = 3π/4 radians.

What is 24 m

500

Find L if r = 8.5 and θ = 2π/3 radians

What is 17π/3 yd

500

Find θ if L = 16π/5 yd and r = 4 yd.

What is 4π/5 radians

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