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Understanding Points, Lines & Angles in Geometry

Learn about points, lines, line segments, rays, parallel lines, perpendicular lines, intersecting lines, and angles in geometry with clear examples and symbols. Identify different shapes like point, line, line segment, or ray.

nigel-phelps
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Understanding Points, Lines & Angles in Geometry

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  1. What is a point? • 1. Point-An exact location in space, usually represented by a dot Example: Symbol:point A

  2. What is a line? • 2. Line- a straight path in a plane that goes on forever in opposite directions Example: • Symbol

  3. What is a line segment? • 3. line segment-Apart of a line that includes two points, called endpoints, and all of the points between them Example: • line segment AB  or line segment BA • Symbol:

  4. What is a ray? • 4. Ray-A part of a line, with one endpoint, that continues without end in one direction Example:ray CD • Symbol:

  5. What is a parallel line? • 5. parallel lines-Linesin a plane that never intersect Example: • Symbol:

  6. What is a perpendicular line? • 6. Perpendicular lines-Twolines that intersect to form four right angles Example:Symbol:

  7. 7. Intersecting lines-Lines that cross each other but don’t form right angles.

  8. 8. Angle-Is formed when two rays share a common endpoint. We Can write angles three different ways Symbol T C V

  9. Lines & Angles

  10. Name each figure Point Line Ray Line Segment Perpendicular Intersecting Parallel

  11. . point

  12. ray

  13. line segment

  14. line

  15. parallel lines

  16. intersecting lines

  17. perpendicular lines

  18. What is it? Is the following shape a parallel line, a perpendicular line, or an intersecting line?

  19. What is it? Is the following shape a parallel line, a perpendicular line, or an intersecting line?

  20. What is it? Is the following shape a parallel line, a perpendicular line, or an intersecting line?

  21. What is it? Is the following shape a parallel line, a perpendicular line, or an intersecting line?

  22. What is it? Is the following shape a parallel line, a perpendicular line, or an intersecting line?

  23. What is it? Is the following shape a parallel line, a perpendicular line, or an intersecting line?

  24. What is it? Is the following shape a parallel line, a perpendicular line, or an intersecting line?

  25. What is it? Is the following shape a parallel line, a perpendicular line, or an intersecting line?

  26. What is it? Is the following a point, a line, a line segment, or a ray?

  27. What is it? Is the following a point, a line, a line segment, or a ray?

  28. What is it? Is the following a point, a line, a line segment, or a ray?

  29. What is it? Is the following a point, a line, a line segment, or a ray?

  30. What is it? Is the following a point, a line, a line segment, or a ray?

  31. What is it? Is the following a point, a line, a line segment, or a ray?

  32. What is it? Is the following a point, a line, a line segment, or a ray?

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