Geometry Vocabulary Review

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