Classifying 2D Shapes

Front

What is a polygon?

Back

A polygon is a closed figure made up of straight line segments. Examples include triangles, quadrilaterals, pentagons, and hexagons.

Front

What is a decagon?

Back

A decagon is a polygon with 10 sides and 10 angles.

Front

What is a heptagon?

Back

A heptagon is a polygon with 7 sides and 7 angles.

Front

What is a pentagon?

Back

A pentagon is a polygon with 5 sides and 5 angles.

Front

What is an octagon?

Back

An octagon is a polygon with 8 sides and 8 angles.

Front

What is a hexagon?

Back

A hexagon is a polygon with 6 sides and 6 angles.

Front

What is a triangle?

Back

A triangle is a polygon with 3 sides and 3 angles.

Front

What are quadrilaterals?

Back

Quadrilaterals are polygons with 4 sides and 4 angles. Examples include squares, rectangles, and trapezoids.

Front

What is the difference between regular and irregular polygons?

Back

Regular polygons have all sides and angles equal, while irregular polygons do not.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.