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April 8th, 2018, 07:48 PM   #1
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How angle A and angle B are equal?

In this circle, O is the center. Angle A and Angle B are equal.

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April 8th, 2018, 08:10 PM   #2
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Quote:
Originally Posted by Ganesh Ujwal View Post
In this circle, O is the center. Angle A and Angle B are equal.

OA and OB are radii so they are equal. This means that triangle OAB is isosceles. Hence, etc.

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