# Parts of a Circle

A circle is a closed curve that is made of points that are the same distance from the **center**.

A **radius **of a circle is a line segment that connects the center to a point on the circle.

A **chord **is a line segment that connects two points on the circle.

A **diameter **of a circle is a line segment that passes through the centre of the circle, connecting two points on the circle.

An **arc **is a curved part of the circle.

The **circumference **of a circle is the distance around the outside of the circle.

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### Help

The correct answer is

##### Remember :

The smallest number is the one that comes first while counting.

##### Solution :

To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.

21,27,23

21 is the smallest number.