greatest no. of regions in a circle with 4 chords?

To find the maximum number of regions that can be formed by drawing chords in a circle, we can follow a straightforward formula:

The number of regions in a circle with n chords can be calculated using the formula:

Number of regions = n^2 + n + 2

In this case, we have 4 chords.

So, substituting n = 4 into the formula:

Number of regions = 4^2 + 4 + 2 = 16 + 4 + 2 = 22

Therefore, the greatest number of regions that can be formed in a circle with 4 chords is 22.