2D Shape Vocabulary

How many vertices does a square have?

• 3

• 5

• 4

• 6

A shape with four sides, four vertices, and four angles.

• triangle

• quadrilateral

• closed shape

• open shape

A closed shape with rounded OR straight lines; or both.

• polygon

• 2D

• plane shape

• parallelogram

A closed shape with only straight lines

• polygon

• plane shape

• 2D

• open shape

A flat shape with a length and width.

• 1D

• 2D

• 3D

• 4D

A 2D shape with 3 or more sides.

• polygon

• quadrilateral

• pentagon

• parallelogram

A 2d shape with 4 sides.

• circle

• quadrilateral

• polygon

• parallelogram

The point where 2 sides meet.

• angle

• side

• dot

• vertex

Which describes a 2d shape that has 2 sets of parallel sides?

• triangle

• quadrilateral

• parallelogram

• polygon

How many sides does an octagon have?

• 5

• 6

• 7

• 8