Maths / Circles / Equal Chords of a Circle Subtend Equal Angle at the Centre

QUESTION

 O is the centre of the circle given below, $\angle AOB=\angle COD=80^o\;and \; AB=4\;cm.$ The length o CD is

 OPTIONS A. 2 cm B. 4 cm C. 8 cm D. 6 cm
Right Option : B

EXPLANATION
Explain TypeExplanation Content
Text

$As\;\angle AOB= \angle COD$

AB = CD      equal angles are subtented by equal chords

CD= 4 cm

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