Attributes of 2D and 3D Shapes

2D and 3D Shapes

Ms.Whiting's 3rd Grade Review!

What is a Polygon?

A Polygon is a Closed Figure with ALL straight sides.

Parallel Sides

• Are sides that are the SAME distance apart, and do not touch!

• The two "l"'s in the word Parallel can help you remember the meaning of the word!

Multiple Choice

What is an example of a Polygon?

Multiple Choice

Which Shape has Parallel sides?

Congruency

• Congruent Sides - sides are ALL the same length in a figure.

• Congruent Shapes - same size and shape.

Vertex - or Vertices

• In a 2-D shape, a vertex is the point where two sides meet!

• In a 3-D shape, it is the point or corner where 3 OR more edges meet.

Faces and Edges

• Face - a polygon that forms the surface of a 3-D shape.

• Edge - where 2 faces meet on a 3-D shape.

Multiple Choice

Which shape DOES not have a face?

Multiple Choice

Which Shape has the MOST faces?

Multiple Choice

Which is an example of showing a Vertex?

Open Ended

Pick your favorite shape! Write the shapes name, and an example of that shape you can find in the real world.