**How Many Diagonals Does A Heptagon Have**. A 7 sides heptagon has 14 diagonals. 900 ° 7 ≈ 128.5714 °.

A 7 sides heptagon has 14 diagonals. A hexagon is a 6 sided polygon with interior angles that add to 720 degrees. Heptagon is a polygon ( a closed shape made up of line segments) made up of 7 sides and 7 angles.