If AB and CD are two equal chords of a circle with centre O such that ∠AOB = 80°, then find ∠COD.

100°

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120°

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80°

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40°

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Solution

The correct option is C 80°
∠COD =∠AOB = 80°
Equal chords of a circle subtend equal angles at the centre.

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Similar questions

∠ A O B = 80^{\circ}

∠ C O D

∠ A O B = 75^{\circ}

∠ C O D

25^{\circ}

In the given figure, BOC is a diameter of a circle with centre O. If AB and CD are two chords such that AB||CD and AB = 10 cm then CD = ?

(a) 5 cm

(b) 12.5 cm

(d) 10 cm

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