Question

An angle whose vertex is the centre of the circle is called​

Answer 1

$\huge\sf{\underline{\underline\purple{Answer}}}$

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)

Answer 2

Answer:

An angle whose vertex is the centre of the circle is called Central Angle .