Polygon Classification and Properties

The video tutorial introduces polygons as closed geometric figures with at least three sides. It emphasizes the importance of being closed and identifies which figures qualify as polygons. The tutorial also covers special groups of polygons, such as triangles, quadrilaterals, pentagons, hexagons, and more, providing their specific names based on the number of sides.

What is a polygon?

• A shape with at least two sides

• A figure with curved lines

• A closed geometric figure with at least three sides

• An open figure with three sides

Why is it important for a polygon to be closed?

• To ensure it has more than three sides

• To avoid having loose ends

• To allow it to have curved lines

• To make it a quadrilateral

Which of the following is NOT a polygon?

• A circle

• A square

• A pentagon

• A triangle

Why is figure A not considered a polygon?

• It is a quadrilateral

• It is made of curved lines

• It has more than four sides

• It is not closed

What characteristic makes figure E not a polygon?

• It has more than four sides

• It is not closed

• It has loose ends

• It is made of curved lines

What is a three-sided polygon called?

• Quadrilateral

• Pentagon

• Hexagon

• Triangle

What is the name of a four-sided polygon?

• Triangle

• Quadrilateral

• Pentagon

• Hexagon

How many sides does a pentagon have?

• Three

• Six

• Five

• Four

What is a six-sided polygon called?

• Nonagon

• Octagon

• Heptagon

• Hexagon

Which polygon is associated with the number eight?

• Octagon

• Nonagon

• Decagon

• Heptagon