Question

With reference to the given figure, name a radius, a diameter, a chord, and a minor arc.

Answer 1

Radius is the line joining the center of the circle to any point on its circumference.

Diameter is a straight line that passes through the center of the circle whose endpoints lie on the circle.

A chord is a line segment joining any two points of a circle.

A minor arc is an arc that measures less than $180$ degrees.

Hence, radius is $\overline{OD}$

Diameter is $\overline{\mathrm{CD}}$

Chord is $\overline{AB}$

Minor arc is $\widehat{AB}$