Question

An arc of 30° in one circle is double an arc in a second circle, the radius of which is three times the radius of the first. Then the angles subtended by the arc of the second circle at its centre in degree​

Answer 1

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Then the angles subtended by the arc of the second circle at its centre is. ... 30° in one circle is double an arc in a second circle, the radius of which is three times the radius of the first.