1. Shapes

2. Decagon A polygon having ten angles and ten sides.polygon

3. Equilateral Triangle A three- sided regular polygon

4. Circle A closed plane curve consisting of all points at a given distance from a point within it called the center.

5. HEXAGON A polygon having six angles and six sides.polygon

6. Cone A solid whose surface is generated by a line passing through a fixed point and a fixed plane curve not containing the point, consisting of two equal sections joined at a vertex.line a plane surface resembling the cross section of a solid cone.

7. Isosceles Triangle A triangle with two equal sides

8. Obtuse Triangle A triangle with one obtuse angle.obtuse angle

9. Oval Having the general form, shape, or outlin e of an egg; egg shaped. ellipsoidal or elliptical.

10. PRISM A transparent solid body, often having triangular bases, Used for dispersing light into a spectrum or for reflecting rays of light.

11. Rectangle A parallelogram having four right angles.parallelogram

12. Cube A solid bounded by six equal squares, the angle between any two adjacent faces being a right angle.right angle

13. Sphere A solid geometric figure generated by the revolution of a semicircle about its diameter; a round body whose surface is at all points equidistant from the ce nter.revolution

14. Square A rectangle having all four sides of equal length.

15. Trapezoid A quadrilateral plane figure having two parallel and two nonparallel sides.quadrilateral

16. ACUTE TRIANGLE. A triangle whose interior angles are all a cute

17. Box A container, case, or receptacle, usually rectangular, of wood, metal, cardboard, etc., and often with a lid or removable cover.

18. CIRCLE A closed plane curve consisting of all points at a given distance from a point within it called the center.

19. Cylinder A surface or solid bounded by two pa rallel planes and generated by a straight line moving parallel to the given planes and tracing a curve bounded by the planes and lying in a plane perpendicular or oblique to the given planes.line

20. Triangle A closed plane figure having three sides and three angles.

21. Parallelograph A four-sided plane rectilinear figure with opposite sides parallel.