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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