Prefixes and Properties of Shapes

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 decagons. 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 denote a shape with four sides?

• Tri

• Quad

• Penta

• Hexa

Which shape is represented by the prefix 'Hexa'?

• Pentagon

• Hexagon

• Quadrilateral

• Triangle

What prefix corresponds to a shape with eight sides?

• Nona

• Hepta

• Octo

• Deca

Which shape is associated with the prefix 'Deca'?

• Decagon

• Heptagon

• Octagon

• Nonagon

What shape is described by the prefix 'Tri'?

• Triangle

• Quadrilateral

• Pentagon

• Hexagon

Which shape has five sides?

• Quadrilateral

• Hexagon

• Pentagon

• Triangle

What is the prefix for a shape with seven sides?

• Tri

• Octo

• Quad

• Hepta

Which prefix means nine?

• Tri

• Quad

• Nona

• Deca

What is a necessary characteristic of a polygon?

• It must have curved sides

• It must be an open shape

• It must have straight sides

• It must have more than ten sides

Which of the following is not a polygon?

• A shape with vertices

• A shape with breaks in its sides

• A closed shape

• A shape with straight sides