Understanding Polygon Prefixes and Properties

The video tutorial introduces prefixes related to numbers three to ten, explaining their meanings and corresponding geometric shapes. It reviews these prefixes and helps identify shapes like triangles, quadrilaterals, and more. The video concludes with a discussion on the characteristics of polygons, emphasizing that they must have straight sides and be closed shapes.

What prefix is used to describe a shape with four sides?

• Tri

• Hexa

• Penta

• Quad

Which shape has five sides?

• Hexagon

• Triangle

• Quadrilateral

• Pentagon

What prefix represents the number eight?

• Hepta

• Deca

• Octo

• Nona

Which shape is associated with the prefix 'nona'?

• Heptagon

• Octagon

• Nonagon

• Decagon

What does the prefix 'deca' mean?

• Eight

• Seven

• Ten

• Nine

Which shape is identified by the prefix 'hepta'?

• Heptagon

• Octagon

• Nonagon

• Hexagon

What shape is this: a stop sign?

• Hexagon

• Heptagon

• Nonagon

• Octagon

Which shape has six sides?

• Triangle

• Pentagon

• Hexagon

• Quadrilateral

What is a necessary characteristic of a polygon?

• It must have curved sides

• It must be open

• It must have straight sides

• It must have more than ten sides

Is a shape with breaks in its sides considered a polygon?

• Only if it has more than four sides

• No

• Yes

• Only if it is closed