Question

an angle whose vertex is on the center of the circle is called​

Answer 1

Answer:

It is called central angle.

Step-by-step explanation:

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Answer 2

Answer:

• A central angle is an angle whose apex (vertex) is the center O of a circle and whose legs (sides) are radii intersecting the circle in two distinct points A and B. Central angles are subtended by an arc between those two points, and the arc length is the central angle of a circle of radius one (measured in radians).The central angle is also known as the arc's angular distance.

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