Question

find the number of degrees subtended at the centre of the circle by an arc whose length is 0.357 times the radius.​

Answer 1

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Length of an arc of a circle is given by the formula l = r theta, where l is the length of the arc, r the radius and theta the angle, in radians, subtended by the arc at the centre. Given l = 0.357 r. Hence 0.357r = r theta.

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