There is no possible answer to the question since there is no such shape as a "hecagon". Furthermore, the word could be hexagon of decagon and so it is not possible to guess what you meant.
A heptagon has 7 sides and a pentagon has 5 sides so a heptagon has 2 more sides than a pentagon
A decagon has 10 sides A heptagon has 7 sides Therefore a decagon has 10 - 7 = 3 more sides than a heptagon.
seven
4 more sides
4 more sides
3
An octagon has 8 sides, while a heptagon has 7 sides. Therefore, an octagon has 1 more side than a heptagon. The difference in the number of sides between an octagon and a heptagon is 1.
One more side
An heptagon has 7 sides and a triangle has 3 sides
9 - 7 = 2.
2. A nonagon has 9 sides and a heptagon has 7 sides. If you subtract 7 from 9 (9-7), only 2 sides remain.
Oh, dude, a dodecagon has 5 more sides than a heptagon. A heptagon has 7 sides, hence the name "hepta" meaning 7, and a dodecagon has 12 sides, like "dodeca" meaning 12. So, yeah, 12 sides minus 7 sides equals 5 more sides for the dodecagon. Math can be fun, right?