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Polygons Only one of these is a polygon. Do you know? A polygon MUST be a closed figure.
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Polygons Only one of these is a polygon. Do you know? A polygon MUST have all straight sides.
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Polygons Can you come up with a good definition of a polygon? A polygon is a closed plane figure with straight sides.
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TRUE or FALSE Circles are polygons. Triangles are a type of a polygon. Rectangles are polygons. All quadrilaterals are polygons. T T T F
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Polygons Time for Math Boards! Please draw ANY polygon on your board.
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Polygons Polygons are classified by the number of sides they have.
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NEW WORD!!!! Vertices Vertices is another word for corner. Vertex = corner Vertices = vertex plural
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Polygons Can you name these polygons? How many sides? How many angles or vertices? 3 3 Triangle
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Polygons Can you name these polygons? How many sides? How many angles or vertices? 4 4 Quadrilaterals
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Polygons Can you name these polygons? How many angles or vertices? 5 Pentagon How many sides? 5
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Polygons Can you name these polygons? How many sides? How many angles or vertices? 6 6 Hexagon
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Polygons Can you name these polygons? How many sides? How many angles or vertices? 8 8 Octagon
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Polygons Did you notice anything about the sides and angles of each shape? The number of angles (or vertices) and sides is the same.
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Name That Polygon Triangle
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Hexagon Name That Polygon
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Quadrilateral
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Name That Polygon Octagon
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Name That Polygon Quadrilateral
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Name That Polygon Pentagon
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