a decagon i believe has either 5 or 20 opposite sides
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A decagon has 10 sides so I cannot see how it could have 20 opposite sides. It has 5 pairs of opposite sides but this does not mean that these opposite sides face each other. In an irregular decagon it is quite possible for opposite sides to be at right angles or at any angle to each other.
A decagon cannot be a parallelogram. In a parallelogram, the opposite sides are parallel to each other. in a decagon, some of the opposite sides would go in different directions.
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 regular decagon has 10 lines of symmetry. Each line of symmetry can be drawn through a vertex and the midpoint of the opposite side, as well as through the midpoints of two opposite sides. This symmetry reflects the decagon's equal angles and sides, allowing for multiple symmetrical divisions.
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 regular decagon has 10 equal sides.