1. Calculate the angle subtended by the chord at the point on the major arc if the radius and the chord of the circle are equal in length.
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By: anil on 05 May 2019 02.06 am
Given : Radius and the chord of the circle are equal in length.
To find : $$angle$$ ACB = ? Solution : It is given that the radius and the chord of the circle are equal in length. => OA = OB = AB => AOB is an equilateral triangle, => $$angle$$ AOB = $$60^circ$$ Now, the angle subtended by an arc at the centre is double the angle subtended by it at any point on the circle. => $$angle$$ ACB = $$frac{60}{2}=30^circ$$ => Ans - (A)
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To find : $$angle$$ ACB = ? Solution : It is given that the radius and the chord of the circle are equal in length. => OA = OB = AB => AOB is an equilateral triangle, => $$angle$$ AOB = $$60^circ$$ Now, the angle subtended by an arc at the centre is double the angle subtended by it at any point on the circle. => $$angle$$ ACB = $$frac{60}{2}=30^circ$$ => Ans - (A)