Geometry Vocabulary

Front

A two-dimensional closed shape made with three or more line segments.

Back

Polygon

Front

A FOUR sided polygon

Back

Quadrilateral

Front

A THREE sided polygon

Back

Triangle

Front

A FIVE sided polygon

Back

pentagon

Front

A six-sided polygon

Back

hexagon

Front

An EIGHT sided polygon

Back

octagon

Front

A triangle with no sides the same length

Back

Scalene

Front

A triangle with three acute angles

Back

Acute Triangle

Front

A parallelogram with four sides equal in length.

Back

Rhombus

Front

A quadrilateral with opposite sides parallel and equal in length.

Back

Parallelogram