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17 October, 20:21

Find the central angle θ which subtends an arc of length 50 miles of a circle of radius 36 miles

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  1. 17 October, 20:45
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    (πrθ) / 180 = arc length [r=radius, θ=central angle, π≈3.14] ⇒

    πrθ = 180*arc length

    θ = (180*arc length) / πr

    θ = (180 * 50) / (3.14 * 36) ≈ 79.6°
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