How many diagonals does a 63 sided convex polygon have?

A 3780

B 1890

C 1850

D 3969

Correct Answer: Option B

Total diagonals = (Total lines - Total side)

So, ⁶³C₂ - 63 = \(\frac{{63 \times 62}}{2} - 63 = 1953 - 63 = 1890\)