2. Part 1 Polygons

3. Triangles A triangle is a polygon with 3 sides. VERTEX SIDE A=1/2bh or A=bh/2

4. Quadrilateral A polygon with equal length of sides.

5. Pentagon A pentagon is a polygon with 5 sides. VERTEX SIDE

6. Hexagon A hexagon is a polygon with 6 sides. SIDE VERTEX

7. Heptagon A heptagon is a polygon with 7 sides.

8. Octagon An octagon is a polygon with 8 sides.

9. Nonagon A nonagon is a polygon with 9 sides.

10. Decagon A decagon is a polygon with 10 sides.

11. Part 2 Quadrilaterals

12. Rectangle A rectangle is a parallelogram with 4 right angles A=bh

13. Square A square is a rectangle with 4 right angles and 4 sides of equal length. A=bh

14. Trapezoid A trapezoid is a quadrilateral with exactly one pair of parallel sides. parallel A=(b1+b2)h/2

15. Parallelogram A parallelogram is a quadrilateral with opposite sides parallel. parallel A=bh

16. 3D Figures

17. Pyramid A space figure whose base is a polygon and whose other faces are triangles that share a common vertex.

18. Cone A solid that has a circular base, a vertex, and a lateral surface.

19. Cylinder A solid figure with congruent circular bases that lie in parallel planes.

20. Rectangular Prism A prism whose bases are rectangles.

21. Sphere A sphere is a 3D figure that has no vertices, edges, or parallel lines.

22. Cube A rectangular prism whose six faces are congruent shapes.