Exploring 2D Shapes: Sides and Vertices

The video tutorial introduces 2D shapes, focusing on their sides and vertices. It covers trapezoids, pentagons, hexagons, octagons, and ovals, explaining how to count their sides and vertices. The tutorial emphasizes the unique properties of each shape, such as the curved line of an oval. The video concludes with a recap of the key concepts learned.

What defines the sides of a 2D shape?

• The color of the shape

• The points where two lines meet

• The straight lines that outline the shape

• The curved lines that enclose the shape

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CCSS.2.G.A.1

How many sides does a trapezoid have?

• 4

• 6

• 5

• 3

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CCSS.6.G.A.4

What is the number of vertices in a pentagon?

• 4

• 5

• 6

• 8

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CCSS.2.G.A.1

How many sides are there in a hexagon?

• 4

• 7

• 5

• 6

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CCSS.6.G.A.4

An octagon is characterized by how many vertices?

• 6

• 7

• 8

• 9

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CCSS.6.G.A.4

What is the correct number of sides and vertices for an octagon?

• 6 sides, 6 vertices

• 8 sides, 8 vertices

• 4 sides, 4 vertices

• 10 sides, 10 vertices

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CCSS.1.G.A.1

CCSS.2.G.A.1

Which shape has zero sides and vertices but one curved line?

• Square

• Triangle

• Oval

• Circle

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CCSS.1.G.A.1

CCSS.2.G.A.1