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3 votes
Line AD is a tangent to circle B at point C and m

What is the measure of
(The answer is 90 but how do you get this answer?)

Line AD is a tangent to circle B at point C and m What is the measure of (The answer-example-1
asked
User Pgampe
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7.9k points

1 Answer

1 vote

BCA is 90 degrees, because a tangent line is perpendicular to the raduis line BC.

answered
User Chanchal
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8.2k points

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