This document defines and describes various geometric shapes and figures: 1) It defines basic shapes like points, lines, planes, angles, and perpendicular and parallel lines. 2) It also defines polygons like triangles, pentagons, hexagons, squares, rectangles, trapezoids, parallelograms, and octagons. 3) More complex 3D shapes are also defined, such as circles, cylinders, spheres, triangular prisms, and rectangular pyramids.

1. Geometric Figures Brice McDaniel Block 2

2. Point Something that has position but not extension, as the intersection of two lines.

3. Line (Segment) A part cut off from a figure, esp. a circular or spherical one, by a line or plane, as a part of a circular area contained by an arc and its chord or by two parallel lines or planes.

4. Plane A surface generated by a straight line moving at a constant velocity with respect to a fixed point .

5. Angle The space within two lines or three or more planes diverging from a common point, or within two planes diverging from a common line.

6. Perpendicular Lines Lines that intersect and meet at a 90 degree right angle .

7. Parallel Lines Lines that extend forever and never cross each other.

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

9. Right Triangle A triangle containing a right angle.

10. Pentagon A polygon having five angles and five sides.

11. Hexagon A polygon having six angles and six sides.

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

13. Rectangle A parallelogram having four right angles.

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

15. Parallelogram A figure that has four sides so that the two opposite sides are parallel and the other two sides are parallel to each other.

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

17. Cylinder A surface or solid bounded by two parallel 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.

18. 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 center .

19. Octagon A polygon having eight angles and eight sides.

20. Triangular Prism A prism whose bases are triangles.

21. Rectangular Pyramid A pyramid whose bases are all rectangles.