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10 August, 04:23

An arc subtends a central angle measuring

2π3/dfrac{2/pi}{3}

3





start fraction, 2, pi, divided by, 3, end fraction

radians.

What fraction of the circumference is this arc?

of the circumference

+2
Answers (1)
  1. 10 August, 04:51
    0
    The arc is one-third of the circumference.

    Step-by-step explanation:

    The area of a circumference = 2πr

    C = 2πr ... (1)

    If an arc subtends a central angle measuring 2π/3 rad,

    The length of the arc = rθ

    Given θ = 2π/3

    Length of the arc L = r (2π) / 3

    L = 2πr/3 ... (2)

    L = 1/3 (2πr)

    Since C = 2πr

    L = 1/3C

    This shows that the arc is one-third of the circumference.
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