Decagon.
A decagon is the ten-sided polygon (two dimensional shape). A decahedron is a ten-sided thee-dimensional shape. A ten-sided die can also be called a pentagonal trapezohedron.
A triangle is a 3 sided shape. There are a few types, Isosceles, Scalene (Acute and Obtuse), Equilateral and the Right angle triangle.
Decagon. A decagon is the name of a ten sided shape.
A two-dimensional shape with twenty sides is an icosagon. A three-dimensional object with twenty sides is an icosahedron.
decagon
Pentagonal trapezohedron.
Decagon is the name of a 10 sided shape. It consists of ten angles and ten sides with each angle being 144 degrees.
A ten-sided polygon is called a decagon.
A ten sided figure is called a Decagon. ( i think that's how you spell it. )
A ten sided shape
A plain sided, 2-dimensional figure of TEN(10) sides. NB From the Latin roots, then names of polygons are :- 3 = tri 4 = tetra/quad 5 = pent 6 = hexa 7 = hepta 8 =- octa 9 = nona 10 = deca (As in decagon above).
a ten sided shape is called a decagon and usually 2d