2-Dimensional Shapes (2D Shapes) 2 D shapes only have two dimensions, such as width and length Some are: Polygons and Some are: Not Polygons
Polygons • Polygons are flat and contain straight sides that are connected.
Examples of Polygons • Include……..
Triangles • Have 3 sides
Quadrilaterals Diamonds also known as a rhombus • Have 4 sides squares rectangles
Pentagons • Have 5 sides
Hexagons • Have 6 sides
Heptagons • Have 7 sides
Octagons • Have 8 sides STOP
Nonagons • Have 9 sides
Decagons Have 10 sides
Undecagons Have 11 sides
Not Polygons Hearts Ovals Circles Non closed shapes
What is a 2D shape that has straight sides that are connected? polygon
What is a quadrilateral? • A 4-sided polygon. • Examples include: squares, rectangles, diamonds, etc.
What is a 3 sided polygon? • A triangle
What is a 5 sides polygon? • A pentagon
What is a 6 sided polygon? • A hexagon
What is an 8 sided polygon? • An octagon