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Let the vertex of an angle ABC be loc...

Let the vertex of an angle ABC be located outside a circle and let the sides of the angle intersect equal chords AD and CE with the circle. Prove that `\ /_A B C` is equal to half the difference of the angles subtended by the chords AC and DE at

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Let the vertex of an angle ABC be located outside a circle and let the sides of the angle intersect equal chords AD and CE with the circle.Prove that /_ABC is equal to half the difference of the angles subtended by the chords AC and DE at the centre

Let the vertex of an angle ABC be located outside a circle and let the sides of the angle intersect equal chords AD and CE with the circle.Prove that /_ABC is equal to half of the difference of the angles subtended by the chords AC and DE at the center.

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If the length of a chord of a circle is equal to that of the radius of the circle , then the angle subtended , in radians , at the centre of the circle by the chord is