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16 November, 11:46

What is the arc length if the radius is 12 cm?*

A

B

60°

O 12 pi cm

O 3 pi cm

O 4 pi cm

024 pi cm

+4
Answers (1)
  1. 16 November, 11:52
    0
    4π cm

    Step-by-step explanation:

    The length of an arc of a circle with radius r and central angle θ is given by ...

    s = rθ

    where θ is in radians.

    Here, your arc measures 60° = π/3 radians, so the arc length is ...

    s = (12 cm) (π/3) = 4π cm
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