Geometry Guide

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Geometry Guide

  1. 1. Lines Angles Triangles Quadrilaterals Circles Geometry Guide
  2. 2. lines Points Line Segments Ray Lines Intersecting Perpendicular Parallel Skew Lines
  3. 3. Points A point is a precise location in space. It is labled with a letter. Point M Point L Points
  4. 4. ' A line that starts one place and ends at another. Point A Point M Line Segments
  5. 5. ' Starts one place and goes on for who knows. Ray
  6. 6. ' A line is something that goes on forever. Lines
  7. 7. Intersecting Two lines that meet in the middle. Intersecting
  8. 8. ' Lines that meet in the middle and make right angles. Perpendicular
  9. 9. ' Two lines next to each other but never intersect Parallel
  10. 10. ' Lines that are in the same plane but never meet. Skew
  11. 11. . Acute Obtuse Right Vertex/Vertices Complementary Supplementary Vertical/Opposite Adjacent Angles
  12. 12. . An acute is an angle that is less then 90 degrees Acute Angle
  13. 13. . An obtuse is an angle that is more then 90 degrees Obtuse Angle
  14. 14. . An angle at exactly 90 degrees. Right Angle
  15. 15. . A straight angle is two 90 degrees it is 180 degrees Straight Angle
  16. 16. . The dot where two lines in an angle meet Vertex/ Vertices
  17. 17. . Two angles are complementary if the sum measures to 90 degrees. 50 deg 40 deg Complementary
  18. 18. . When you add the angles to 180 degrees. 180 degrees Supplementary
  19. 19. . Angles that are vertical to each other Vertical / Opposite
  20. 20. . Angles that are right next to each other Adjacent
  21. 21. . Right Obtuse Acute Scalene Isosceles Equilateral Sum of internal angles Perimeter Area Triangles
  22. 22. A triangle with the bigger angle a right angle Right
  23. 23. A triangle with the bigger angle being obtuse Obtuse
  24. 24. Acute A triangle with the greater angle an acute Acute
  25. 25. A triangle with no congruent sides Scalene
  26. 26. A triangle with two congruent sides Isosceles
  27. 27. All sides are congruent Equilateral
  28. 28. Sum of Internal Angles
  29. 29. The outside of a shape added together 90 90 50 50 50 +50 +90 +90= 280 Perimeter
  30. 30. The inside amount of a shape. 20 30 Area
  31. 31. Quadrilaterals Quadrilateral Trapezoid Parallelogram Rectangle Rhombus Square Area of Rectangle Area of square Area of Parallelogram Area of trapezoid
  32. 32. Quadrilateral A four sided figure.
  33. 33. Trapezoid A quadrilateral with two parallel lines
  34. 34. Parallelogram Opposite sides are parallel and congruent
  35. 35. Rectangle Parallelogram with four right angles
  36. 36. Rhombus A parallelogram with two congruent sides.
  37. 37. Square Rectangle with four congruent sides
  38. 38. Area of a rectangle Length times height
  39. 39. Area of a Square Length times height
  40. 40. Area of a Parallelogram Length times height divided by half
  41. 41. Area of a Trapezoid Height times length divided by half
  42. 42. Circles Chord Diameter arc Radius Sector Circumfrence Area of a Circle Other Polygons
  43. 43. Chord A line segment with two points on the circle
  44. 44. Diameter A line segment that passes through the center of the circle
  45. 45. Arc A part of a circle
  46. 46. Radius With one end point in the middle and the other on th edge
  47. 47. Sector A region enclosed by two radii and the arc
  48. 48. Circumference Area of the circle
  49. 49. Area of a circle The circumference is the area
  50. 50. Polygons are shapes Other Polygons

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