a undecagon has eleven sides and angles.
An undecagon has 11 sides.
An undecagon is an 11 sided polygon
11 sides
An undecagon has eleven sides. That means that it has more sides than a decagon and fewer sides than a dodecagon.
There are 11 triangles in an undecagon. The number of sides of a polygon is the number of triangles it has.
A pentagon has 5 sides
Triangle has 3 sides Quadrilateral has 4 sides Pentagon has 5 sides Hexagon has 6 sides Heptagon has 7 sides Octagon has 8 sides Nonagon has 9 sides Decagon has 10 Undecagon has 11 sides Dodecagon has 12 sides And there are many more because polygon means many sides
A pentagon has 5 sides.
A pentagon has five sides.
a pentagon has no parallel sides
A hexagon has six sides, and a pentagon has five sides
A pentagon has five sides and a hexagon has six sides.