Geometry Crossword Puzzle!

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Across
  1. 4. The angle formed by a horizontal line and an observer's line of sight to an object below.
  2. 8. 3.14
  3. 11. Points that lie on the same line are called_____.
  4. 13. Figures that have the exact same size and the exact same shape.
  5. 14. An unproven statement that is based on observations.
  6. 17. A comparison of two numbers by division, often used to show the scale of similar figures.
  7. 20. Two angles that share a common vertex and side, but no common interior points.
  8. 21. The longest side of a right triangle, opposite the 90-degree angle.
  9. 23. The set of all points in space equidistant from a given point called the center.
  10. 26. A transformation that "slides" every point of a figure the same distance in the same direction.
  11. 27. The distance from the center of a regular polygon to the midpoint of any side.
  12. 28. Objects that lie in the same flat surface or plane.
Down
  1. 1. A triangle with at least two congruent sides.
  2. 2. A polygon with exactly four sides.
  3. 3. A transformation that stretches or shrinks a figure to create a similar figure.
  4. 5. A parallelogram with four congruent sides.
  5. 6. A solid with two congruent, parallel circular bases.
  6. 7. The amount of space that a three-dimensional figure encloses.
  7. 9. The distance around the outside of a circle.
  8. 10. The average value or mean which signifies the central tendency of the set of numbers by finding the product of their values.
  9. 12. A transformation that uses a line like a mirror to create a flip image.
  10. 14. To write this type of statement, you switch the hypothesis and the conclusion.
  11. 15. Part of a line that consists of two endpoints and all points between them.
  12. 16. A specific case that shows a statement is false.
  13. 18. Two angles that are ___ if the sum of their measure is 180 degrees.
  14. 19. The intersection point of two lines on a plane.
  15. 22. The point of concurrency where the three medians of a triangle meet.
  16. 23. The region of a circle bounded by two radii and their intercepted arc (looks like a pizza slice).
  17. 24. Planes that never ever intersect.
  18. 25. A line in the plane of a circle that intersects the circle at exactly one point.