i need to make a 14 sided figure from straws and pipe cleaners
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A 2-dimensional shape is a 'DECAGON'. A 3-dimensional shape is a 'DECAHEDRON'.
A 2-dimensional plain polygon is called a 'DECAGON'. Here are the names for 2-dimensional polygons, up to ten sides. 3 Trigon ( triangle) 4 Tetragon ( Quadrilateral) 5 Pentagon 6 Hexagon 7 Heptagon 8 Octagon 9 Nonagon 10 Decagon. NB The suffix '--gon' indicates a 2-dimensional figure. The prefixes ' tri--- (etc))' are from their Latin roots. NNB The suffix '---hedron- indicates a 3-dimensional object. . e.g. 'Tetrahedron'. a four sides 3-dimensional object. (commonly referred to as a 'triangular based pyramid).
Not sure what a decagonal is. Since the question refers to faces, edges and vertices, it may be assumed that the object in question is 3-dimensional. A decagon certainly is not, so decagonal cannot be a mistaken name for a decagon.
There is no such thing as a 3-D decagon.
3-dimensional