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Across
  1. 3. A ten sided shape
  2. 4. This tells you the number of times the base is multiplied by itself
  3. 7. Points lying on a single straight line
  4. 8. A quadrilateral with two pairs of parallel sides
Down
  1. 1. One of the four regions into which the axes divide a coordinate plane
  2. 2. A line segment joining a vertex of a triangle to the midpoint of the opposite side
  3. 5. A statement that ratios are equal
  4. 6. A point where the edges of a figure intersect
  5. 8. The ratio of the circumference of a circle to its diameter
  6. 9. Angles more than 180 degrees