12-sided two dimensional shape: dodecagon12-sided three dimensional shape: dodecahedron
A three sided shape is a triangle because of the beginning tri . Just remember it like a tricycle which has 4 wheels.
An equilateral triangle.
It is a hendecahedron.
It is called a triangle. three-sided polygon is called a triangle, from the Greek word "tri" meaning "three" as in tricycle, or tripod. from : espi
12-sided two dimensional shape: dodecagon12-sided three dimensional shape: dodecahedron
A 23 sided polygon(shape) is called a icosikaitrigon, it can also be referred to as a 23-gon.
A three sided shape is a triangle because of the beginning tri . Just remember it like a tricycle which has 4 wheels.
An equilateral triangle.
It is a hendecahedron.
It is called a triangle. three-sided polygon is called a triangle, from the Greek word "tri" meaning "three" as in tricycle, or tripod. from : espi
a decagon
An eight-sided three-dimensional shape is called an octohedron.
A hexahedron is a three-dimensional geometric shape having six sides; a hexagon is a two-dimensional six-sided shape.
a Pentagon is five sided and CAN have 3 right angles.
Two-dimensional: Pentagon Three-dimensional: Pentahedron
A three sided figure with all unequal sides is called a scalene triangle. ■