There need not be any but there can be any number up to ten.
A regular decagon has 10 equal sides.
10 sides and angles * * * * * A decagon need not have any equal sides. If it does have equal sides, their number can take any [integer] value in the range [2, 10].
No if it's an irregular decagon
A decagon has 10 equal sides while a square has 4 equal sides
A decagon can be either regular or irregular. A regular decagon has all its sides and angles equal, while an irregular decagon has sides and/or angles that are not equal. The classification depends on the specific properties of the decagon in question.
A decagon has 10 sides
A decagon has 10 sides
''Decagon'' is any polygon with ten sides and ten angles ''Regular decagon'' is a polygon with ten sides of equal length and all angles equal to 144°
There are 10 sides on a decagon
You just call it a decagon. If all the angles and sides are equal then it's a regular decagon. If not, it's an irregular decagon.
Its not a do-decagon its a dodecahedran!!
In a regular decagon, all sides are congruent, meaning they are of equal length, and all interior angles are equal. However, in an irregular decagon, the sides can vary in length and are not necessarily congruent. Therefore, whether all sides of a decagon are congruent depends on whether it is regular or irregular.