Maths / Circles / Angle at the Centre is Double The Angle at Circumference

QUESTION
 

An equilateral triangle ABC is inscribed in a circle with centre O. The measures of angle BOA is

OPTIONS
A. 

30^o

B. 

60^o

C. 

90^o

D. 

120^o

Right Option : D

EXPLANATION
Explain TypeExplanation Content
Text

As ABC is an equilateral triangle

So angle C = 60^0

angle BOA = 120^0

Angle at the centre is double thw angle at the circumference

 

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