Respuesta :
The measure of angle COA will be 160°. Option C is correct. Center angle theorem is the base of the given problem.
What is the definition of geometry?
It is concerned with the geometry, region, and density of various 2D and 3D shapes.
The measure of an angle formed by an arc of a circle with any point on the circumference of that circle is half the angle formed by that arc at the center of the circle.
The angle formed by arc AC at the center, will be twice as large. Therefore,
∠AOC = 2∠ABC
∠AOC = 2(80°)
∠AOC = 160°
As a result, the center angle AOC is 160 degrees.
To learn more about geometry, refer:
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