Question

Define central angle.​

Answer 1

Answer:

The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion

Answer 2

Answer:

A central angle is an angle whose apex is the center O of a circle and whose legs 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. 

Additional information:-

• The sum of the measures of the central angles of a circle with no points in common is 360°
• An inscribed angle is half the measure of a central angle subtended by the same arc. A central angle is twice the measure of an inscribed angle subtended by the same arc.CAB since both are subtended by arc(CB).
• The Central Angle Theorem states that the central angle from two chosen points A and B on the circle is always twice the inscribed angle from those two points. 
• The formula for sector area is simple - multiply the central angle by the radius squared, and divide by 2