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In geometry, a decagon (from the Greek δέκα déka and γωνία gonía, "ten angles") is a ten-sided polygon or 10-gon. [1] The total sum of the interior angles of a simple decagon is 1440°. Regular decagon
Some ten-sided dice (often called 'Percentile Dice') are sold in sets of two where one is numbered from 0 to 9 and the other from 00 to 90 in increments of 10, thus making it impossible to misinterpret which one is the tens and which the units die. Ten-sided dice may also be marked 1 to 10 when a random number in this range is desirable.
A pentagon is a five-sided polygon. A regular pentagon has 5 equal edges and 5 equal angles. ... To construct the name of a polygon with more than 20 and fewer than ...
For mathematical objects in more dimensions, see list of mathematical shapes. For a broader scope, ... Decagram - star polygon with 10 sides;
The 5 Platonic solids are called a tetrahedron, hexahedron, octahedron, dodecahedron and icosahedron with 4, 6, 8, 12, and 20 sides respectively. The regular hexahedron is a cube . Table of polyhedra
The 12-sided object is one of just 33 known to exist in Roman Britain, and one of approximately 130 in the world. ... The 1,700-year-old object will be displayed at the Lincoln Museum from May 4 ...
A 10-sided die. In geometry, a decahedron is a polyhedron with ten ... so this name does not identify a specific type of polyhedron except for the number of faces.
The name comes from Ancient Greek ... There are two objects, one convex and one nonconvex, that can both be called regular icosahedra. ... 10-sided trapezohedron (2 ...