Using the formula: 0.5*(142-42) = 77 diagonals
Chat with our AI personalities
A polygon with 14 diagonals will have 7 sides
7
1/2*(142-42) = 77 diagonals
6 * * * * * No! The number of diagonals in a polygon with n sides is 1/2*n*(n - 3). So when n = 7 this gives the number of diagonals in a heptagon is 14.
14 diagonals