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

asked Sep 26, 2021 214k views

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4 votes

Answer: 90 degrees

Step-by-step explanation: Khan academy

Yannik answered Sep 28, 2021

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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.

Steven Chou answered Oct 2, 2021

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