The number of diagonals in a regular heptagon is:

Correct option is C

Given:

A regular heptagon (7-sided polygon)

Concept Used:

The number of diagonals in an n-sided polygon is given by the formula:

Total diagonals = $$\frac{n(n - 3)}{2}$$​​

Solution:

For a heptagon, n = 7

Diagonals = $$\frac{7(7 - 3)}{2} = \frac{7 \times 4}{2} = \frac{28}{2}$$​ = 14