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# Kyle Bach

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• 1. Kyle Bach Geometry in the Real World Block 1 Mrs.Sykes 12-11-09
• 2. A zero-dimensional figure. A geometric element that has position but no extension Point
• 3. Line A two-dimensional object that has no endpoints and continues on forever in a plane; formed of infinite points
• 4. Plane A two-dimensional group of points that goes on infinitely in all directions; made up of infinite lines
• 5. Angle the union of 2 rays that have the same endpoint
• 6. Perpendicular 2 segments, rays, or lines that form a 90 degree angle
• 7. Parallel Two or more coplanar lines that have no points in common
• 8. Triangle A polygon with three sides
• 9. Right Triangle A triangle that has a 90 degree angle
• 10. Pentagon A five-sided polygon
• 11. Hexagon A six-sided polygon
• 12. Square
• An equilateral and equiangular quadrilateral
• 13. Rectangle
• A quadrilateral whose angles are all right angles
• 14. Trapezoid A quadrilateral that has at least one pair of parallel sides
• 15. Parallelogram A quadrilateral with both pairs of opposite sides parallel.
• 16. Circle The set of points on a plane at a certain distance from a certain point (center); a polygon with infinite sides
• 17. Cylinder The surface of a cylindrical solid whose base is a circle
• 18. Sphere The set of points in space equidistant from a certain point
• 19. Square Pyramid The surface of a conic solid whose base is a square
• 20. Cube A hexahedron with six equal squares as faces
• 21. Polyhedron A solid figure bounded by plane polygons or faces