Geometry Vocabulary Review

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Across
  1. 5. The action of sliding an object without flipping, rotating or dilating it
  2. 13. The center of gravity in a triangle
  3. 14. An angle with a degree measure between 90 and 180 degrees
  4. 18. Property that states that if a = b, then a may be replaced by b in any equation or expression
  5. 20. A polygon that has at least one vertex on the interior of the polygon, giving it a “caved in” look
  6. 22. A branch of mathematics that deals with the measurement, properties, and relationships of points, lines, angles, surfaces, and solids
  7. 24. (Two words) A line which cuts a segment into two equal parts at a 90 degree angle
  8. 25. A line with undefined slope, x = some number
  9. 26. Two geometric figures are considered this if their shape is identical but they are related by the same scale factor, ~
  10. 29. Property that states that for all real numbers a and b; if a = b then b = a
  11. 32. Two geometric figures are considered this if their size and shape are identical, ≅
  12. 33. Two lines intersect at a 90 degree angle
  13. 34. A triangle with all three sides congruent
  14. 36. Two objects (lines, angles, etc.) that are next to each other
Down
  1. 1. A selection of objects in which order is not important
  2. 2. The action of shrinking or growing an image using a scale factor
  3. 3. Property that states if a(b + c) then ab + bc
  4. 4. A triangle with no sides of congruent length
  5. 6. The longest side in a right triangle, across from the right angle
  6. 7. An arrangement of objects in which order is important
  7. 8. A line with zero slope, y = some number
  8. 9. The action of turning a figure around a center point a specified number of degrees
  9. 10. Property that states that for every real number a; a = a
  10. 11. A shape with exactly four sides
  11. 12. The action of mirroring an image over a line
  12. 15. A quadrilateral with two pairs of parallel sides
  13. 16. Two angles added together equal a straight line or 180 degrees, also known as a linear pair
  14. 17. (Two words) A line or ray that cuts an angle into two equal parts
  15. 19. Two angles added together equal a right angle or 90 degrees
  16. 21. Two lines going in the same direction but always the same distance apart
  17. 23. Another name for the height of a triangle
  18. 27. An angle with a degree measure of exactly 90 degrees
  19. 28. An angle with a degree measure between 0 and 90 degrees
  20. 30. A polygon that has all vertices pointing outwards, away from the interior of the shape
  21. 31. Property that states that for all real numbers a, b, and c; if a = b, b = c, then a = c
  22. 35. A triangle with two sides that are congruent