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What is the name of a 18 sided figure?
The name of a 18 sided figure is an octadecagon or octakaidecagon. As you can see the prefix octa- means 8, and deca- means 10. It has 18 sides and 18 vertices,
What name is given to any straight sided closed figure with four sides?
quadrilateral shape
What is the name of a 2D shape with 20 sides?
A twenty sided, 2D figure is called an icosagon.
What is the name of a 20 congruent sided shape called?
icosahedron
What isthe name of a 5 sided figure?
A 5-sided figure is called a pentagon.
What is the name of a 3 sided figure with all congruent sides?
An equilateral triangle.
What is the name given to an eight-sided polygon that has congruent sides?
It is a regular 8 sided octagon.
What is the name for a three-sided polygon where all three sides are congruent?
an equilateral triangle
What is the name of a eight sided polygon where all the sides and angles are not congruent?
An irregular octagon.
What is the name of a 11 sided figure?
a hendecagon has 11 sides =)
What is the name of 5 sides?
A 5-sided figure is called a "Pentagon".
What is the name of a three sided shape that has three unequal sides?
A congruent triangle is a triangle with all its sides being unequal to each other.
Name the polygon that has 12 sides?
a 12 sided figure is called a dodecagon
What is the name of a three- sided figure with sides that has no equal in length?
A scalene triangle
What is a plane figure with 11 sides?
An 11-sided figure is a hendecagon, or an undecagon. Either name applies.
A figure with all of its sides congruent?
That doesn't have a special name. If all the angles are also congruent (and convex), then it is called a regular polygon.
What is the name of a 12 sided figure?
A Dodecahedron has twelve pentagonal faces. A Dodecagon is a plane figure with twelve sides.
