Classify Polygons - Vocabulary

A polygon is:

• a closed figure with three or more sides

• a type of circle

• a line segment

• an open figure with two sides

Fill in the blank: A regular polygon is a polygon with all sides equal and all angles _______.

• equal

• unequal

• right

• obtuse

An irregular polygon is a polygon that:

• has all sides and angles equal

• has sides and angles that are not all equal

• has all angles equal but sides of different lengths

• has all sides equal but angles of different measures

Which of the following is a defining attribute of a polygon?

• Color

• Number of sides

• Size

• Orientation

Fill in the blank: Non-defining attributes do not determine a polygon’s shape, such as color, size, and _______.

• texture

• weight

• height

• material

Symmetry in geometry is:

• A property where a shape looks the same after some transformation.

• A type of angle measurement.

• A method for calculating area.

• A technique for drawing circles.

Which of the following is a type of quadrilateral?

• Pentagon

• Hexagon

• Trapezoid

• Triangle

Fill in the blank: A triangle with all sides equal is called an _______ triangle.

• equilateral

• isosceles

• scalene

• right-angled

The condition in which two or more parts are exactly the same shape after a fold, turn, flip, or slide is called:

• Symmetry

• Asymmetry

• Congruence

• Similarity

Which of the following is a type of angle?

• Congruent

• Acute

• Parallel

• Perpendicular