How many chords can be drawn through 21 points on a circle?

Explanation

To find out how many chords can be drawn through 21 points on a circle, we can follow these steps:

### Step 1: Understand the concept of chords
A chord in a circle is defined by two distinct points on the circumference of the circle. Therefore, to draw a chord, we need to select 2 points from the given points on the circle.

### Step 2: Identify the number of points
In this case, we have 21 points on the circle.

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