Math Vocab #3

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Across
  1. 5. two triangles are similar whenever two angles of one triangle are congruent to two angles of the other triangle
  2. 10. if a line is drawn from a point on one side of a triangle parallel to another side, then it forms a triangle similar to the original triangle
  3. 11. a way to measure objects that are too large to measure using a tape measure or ruler
  4. 12. when the image of a dilation is smaller than the original figure
  5. 13. the distance from the center of a circle to the edge of a circle (half the distance of the diameter
  6. 15. a three dimensional object (having length, width, anf height
  7. 16. two figures with the same shape
  8. 19. a solid with a polygon for a base and a single vertex not in the plane of the base
  9. 20. a part of a circle
  10. 23. a point halfway between the endpoints of a segment
  11. 26. in a triangle, the segment drawn from a vertex perpendicular to the line containing the opposite side
  12. 27. the sum of the measures of the angles of a triangle is 180o
  13. 28. when the image of a dilation is larger than the original figure
  14. 30. if the altitude is drawn to the hypotenuse of a right angle, then the two triangles formed are similar to the original triangle and to each other
  15. 31. the distance across a circle through the center
  16. 32. if the altitude is drawn to the hypotenuse of a right triangle, then measure of the altitude is the geometric mean between the measures of the parts of the hypotenuse
Down
  1. 1. have the same shape but not necessarily the same size
  2. 2. a segment of a polygon joining two non-consecutive sides
  3. 3. a solid with two parallel bases
  4. 4. through a point not on a given line, there is only one line parallel to the given line
  5. 6. two triangles whose vertices can be matched up so that the corresponding sides are in proportion
  6. 7. the distance around a circle
  7. 8. represents an actual object
  8. 9. if two triangles (or other polygons) are similar
  9. 14. in any right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs
  10. 17. the symbol for pi is in the answer
  11. 18. the result of a transformation of an original figure
  12. 21. √[(x₂ - x₁)² + (y₂ - y₁)²]
  13. 22. the amount of space a solid takes up
  14. 24. the region of a circle formed by the central angle and its arc
  15. 25. the ratio of any length in the image to the corresponding length on the original figure
  16. 29. a transformation in which the original figure and its image are similar