6th Grade Geometry Vocabulary

Front

A quadrilateral with opposite sides parallel and equal in length

Back

Parallelogram

Front

A figure that is made up of simpler 2-dimensional figures is a _______ figure

Back

Composite Figure

Front

The amount of space inside a closed two-dimensional figure. It is measured in square units.

Back

Area

Front

A _________ is a two-dimensional closed figure made with three or more straight line segments that meet only at their endpoints.

Back

Polygon

Front

The point where two rays, lines, or line segments meet to form an angle.

Back

Vertex

Front

A three-sided polygon is called a _________.

Back

Triangle

Front

A four-sided polygon is called a _________.

Back

Quadrilateral

Front

The distance around a two-dimensional shape is called its _________.

Back

Perimeter

Front

A polygon with all sides and angles equal is called a _________.

Back

Regular Polygon

Front

A triangle with one angle measuring more than 90 degrees is called an ________ triangle.

Back

Obtuse