Classifying 2D Shapes

Front

What is perimeter?

Back

(add up all the sides) the number of units needed to go around a shape.

Front

What is a regular shape?

Back

A shape where all sides are the same length.

Front

What is an equilateral triangle?

Back

A triangle that has three equal sides (a regular triangle).

Front

What are parallel lines?

Back

Lines that will never intersect or cross.

Front

What is a parallelogram?

Back

A type of quadrilateral with 2 pairs of parallel sides.

Front

What is an area?

Back

The number of square units needed to cover a surface.

Front

What is a quadrilateral?

Back

A polygon with four sides.

Front

What is a triangle?

Back

A polygon with three sides.

Front

What is a right angle?

Back

An angle that measures 90 degrees.

Front

What is a vertex?

Back

A point where two or more lines meet.