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AC is tangent to circle O at point C. What is the measure of angle ACO?
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AC is tangent to circle O at point C. What is the measure of angle ACO?

AC is tangent to circle O at point C. What is the measure of angle ACO?-example-1
User Jacek Blaszczynski
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8.7k points

2 Answers

4 votes

Answer: 90 degrees

Step-by-step explanation: Khan academy

User Yannik
by
8.8k points
5 votes

Answer:

m < ACO = 90 degrees.

Explanation:

The line joining the center O of the circle to the point of contact of the tangent is a right angle.

User Steven Chou
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8.5k points
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