Maths / Circles / Angle in a Semicircle

QUESTION

 Two circles with centres O and O intersect each other at points B and C. BC is the common chord. What is the measure of $\angle ACB\;?$

 OPTIONS A. $90^o$ B. $120^o$ C. $180^o$ D. $180^o-\angle B$
Right Option : A

EXPLANATION
Explain TypeExplanation Content
Text

As AB is the diameter at the circle

$\angle ACB = 90^0$

Angle in the semicircle is $90^0$

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