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courage
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Tyro
Asked: 2020-12-20T15:23:27+00:00 In:

what is the length of the arc?

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An arc of a circle of radius 7.3cm subtends an angle of 60^{0} at the center of the circle. If \Pi =\dfrac{22}{7}, what is the length of the arc?

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  2. Sengemegz
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    Length of arc=\dfrac{\theta }{360}\times 2\Pi r
    \theta =60^{0},r=7.3, \Pi =\dfrac{22}{7}
    \Rightarrow l=\dfrac{60}{360}\times 2\times \dfrac{22}{7} \times 7.3
    \Rightarrow l=\dfrac{1}{6}\times\dfrac{321.2}{7}
    \Rightarrow l=\dfrac{321.2}{42}
    \therefore l=7.648cm

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