A decagon has 10 angles (and sides)
A regular decagon has 10 sides. See link.
An undecagon has eleven sides. That means that it has more sides than a decagon and fewer sides than a dodecagon.
Decagon
A do-decagon has twelve sides. An octagon has 8 sides. 12-8=4
A decagon has 10 sides
A decagon has 10 sides
There are 10 sides on a decagon
Its not a do-decagon its a dodecahedran!!
Decagon is 10 sides. Octagon is 8 sides.
A decagon has 10 sides. It also have 10 angles.
A decagon has 10 sides
A decagon has 10 sides.
A decagon has 10 sides, and a quadrilateral has 4 sides, therefore a decagon has 6 more sides than a quadrilateral.
A decagon has five more sides.
A regular decagon has 10 equal sides.
A nonagon has 9 sides and a decagon has 10 sides