1. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? What shapes are these? Identify the Faces, Edges, Vertices.

2. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? rectangle

3. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? Rectangular Prism

4. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? rhombus

5. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? hexagon

6. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? trapezoid A trapezoid is a quadrilateral with two sides parallel. quadrilateral parallel

7. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? diamond

8. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? circle

9. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? sphere

10. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? square pyramid

11. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? square

12. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? cube

13. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? triangle

14. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? Triangle pyramid

15. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? cylinder

16. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? pentagon

17. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? hexagon

18. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? Parallelogram Creating Parallelograms using a rectangle and a rhombus. These are ParallelogramsThese are Parallelograms. A parallelogram is a quadrilateral with opposite sides parallel (and therefore opposite angles equal). A quadrilateral with equal sides is called a rhombus, and a parallelogram whose angles are all right angles is called a rectangle. And, since a square is a degenerate case of a rectangle, both squares and rectangles are special types of parallelograms. quadrilateral rhombus angles right angles rectangle square rectangle

19. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? right angle triangle

20. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides?

21. What shape is this? What is special about this shape? How many vertices? How many faces? How many sides? These are quadrilaterals. A quadrilateral, sometimes also known as a tetragon or quadrangle (Johnson 1929, p. 61) is a four-sided polygon. If not explicitly stated, all four polygon vertices are generally taken to lie in a plane. (If the points do not lie in a plane, the quadrilateral is called a skew quadrilateral.) There are three topological types of quadrilaterals (Wenninger 1983, p. 50): convex quadrilaterals (left figure), concave quadrilaterals (middle figure), and crossed quadrilaterals (or butterflies, or bow-ties; right figure). polygon verticesplane skew quadrilateral A quadrilateral with two sides parallel is called a trapezoid, whereas a quadrilateral with opposite pairs of sides parallel is called a parallelogram.parallel trapezoidparallelogram