Regular Shapes with Names and Pictures

Shapes are an important part of everyday learning because they help us recognize and describe the forms of objects around us. Common shapes include circles, squares, triangles, rectangles, ovals, and diamonds, which can be found in toys, buildings, signs, and household items. Learning regular shapes with names helps children and beginners develop basic geometry skills, improve vocabulary, and identify different shapes more easily. In this article, you will learn regular shapes with names and pictures, including simple examples to help kids, students, teachers, and English learners recognize common shapes and understand their names.

Table of Contents

20 Names of Regular Shapes

Triangle
Square
Penta
Hexa
Hepta
Octa
Nona
Deca
Henda
Dodeca
Trideca
Tetradeca
Pentadeca
Hexadeca
Heptadeca
Octadeca
Enneadeca
Icosi
Icosikai
Icosikaid

Names of Regular Shapes with Pictures

Triangle
A triangle is a flat shape with three straight sides and three corners. A regular triangle has three equal sides and three equal angles.
Square
A square is a four-sided shape with four equal sides and four right angles. It is a common regular shape.
Penta
Penta refers to five. A regular pentagon is a shape with five equal sides and five equal angles.
Hexa
Hexa refers to six. A regular hexagon has six equal sides and six equal angles, like the cells of a honeycomb.
Hepta
Hepta refers to seven. A regular heptagon has seven equal sides and seven equal angles.
Octa
Octa refers to eight. A regular octagon has eight equal sides and eight equal angles.
Nona
Nona refers to nine. A regular nonagon is a nine-sided shape with equal sides and equal angles.
Deca
Deca refers to ten. A regular decagon has ten equal sides and ten equal angles.
Henda
Henda is a shortened form used here for an eleven-sided shape. A regular hendecagon has eleven equal sides and angles.
Dodeca
Dodeca refers to twelve. A regular dodecagon has twelve equal sides and twelve equal angles.
Trideca
Trideca refers to thirteen. A regular tridecagon has thirteen equal sides and thirteen equal angles.
Tetradeca
Tetradeca refers to fourteen. A regular tetradecagon has fourteen equal sides and fourteen equal angles.
Pentadeca
Pentadeca refers to fifteen. A regular pentadecagon has fifteen equal sides and fifteen equal angles.
Hexadeca
Hexadeca refers to sixteen. A regular hexadecagon has sixteen equal sides and sixteen equal angles.
Heptadeca
Heptadeca refers to seventeen. A regular heptadecagon has seventeen equal sides and seventeen equal angles.
Octadeca
Octadeca refers to eighteen. A regular octadecagon has eighteen equal sides and eighteen equal angles.
Enneadeca
Enneadeca refers to nineteen. A regular enneadecagon has nineteen equal sides and nineteen equal angles.
Icosi
Icosi is a shortened form related to twenty. A regular icosagon has twenty equal sides and twenty equal angles.
Icosikai
Icosikai is a shortened form used here for shapes with twenty-one sides. A regular 21-sided polygon has equal sides and angles.
Icosikaid
Icosikaid is a shortened form used here for shapes with twenty-two sides. A regular 22-sided polygon has equal sides and angles.

Names of Regular Shapes with Pictures

List of Regular Shapes with Names

Triaconta
Tetraconta
Pentaconta
Hexaconta
Heptaconta
Octaconta
Enneaconta
Hecta
Chilia
Myria
Mega
Giga
Tera
Peta
Exa
Zetta
Yotta
Kilo
Deca
Poly

Learn 20 Regular Shapes in English

Triaconta
Triaconta refers to thirty. A regular triacontagon has thirty equal sides and thirty equal angles.
Tetraconta
Tetraconta refers to forty. A regular tetracontagon has forty equal sides and forty equal angles.
Pentaconta
Pentaconta refers to fifty. A regular pentacontagon has fifty equal sides and fifty equal angles.
Hexaconta
Hexaconta refers to sixty. A regular hexacontagon has sixty equal sides and sixty equal angles.
Heptaconta
Heptaconta refers to seventy. A regular heptacontagon has seventy equal sides and seventy equal angles.
Octaconta
Octaconta refers to eighty. A regular octacontagon has eighty equal sides and eighty equal angles.
Enneaconta
Enneaconta refers to ninety. A regular enneacontagon has ninety equal sides and ninety equal angles.
Hecta
Hecta refers to one hundred. A regular hectogon has one hundred equal sides and one hundred equal angles.
Chilia
Chilia refers to one thousand. A regular chiliagon has one thousand equal sides and angles, making it look almost circular.
Myria
Myria refers to ten thousand. A regular myriagon has ten thousand equal sides and angles.
Mega
Mega means one million in the metric system. A regular megagon is a polygon with one million equal sides and angles.
Giga
Giga means one billion. It is a number prefix, not the standard name of a regular shape.
Tera
Tera means one trillion. It is a number prefix, not the standard name of a regular shape.
Peta
Peta means one quadrillion. It is a number prefix, not the standard name of a regular shape.
Exa
Exa means one quintillion. It is a number prefix, not the standard name of a regular shape.
Zetta
Zetta means one sextillion. It is a number prefix, not the standard name of a regular shape.
Yotta
Yotta means one septillion. It is a number prefix, not the standard name of a regular shape.
Kilo
Kilo means one thousand. It is a number prefix, not the standard name of a regular shape.
Deca
Deca means ten. It is a number prefix and can describe the number of sides in a decagon.
Poly
Poly means many. A polygon is a closed, flat shape made from straight sides.