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A central angle is best described as which of the following?

A.
It has a measure greater than 180 degrees.

B.
It is an angle that has its vertex on the circle.

C.
It is an angle that has its vertex at the center of a circle.

D.
It is part of the circumference of a circle.

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Answer:

C. It is an angle that has its vertex at the center of a circle.

Step-by-step explanation:

That's the definition.

A. is wrong. An angle with a measure greater than 180° is an obtuse angle,

B. is wrong. An angle that has its vertex on the circle is an inscribed angle.

D. is wrong. Part of the circumference of a circle is an arc.

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