4th

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Across
  1. 1. a mathematical relationship or rule expressed in symbols.
  2. 3. the exact middle point.
  3. 4. a round-shaped figure that has no corners or edges.
  4. 6. each of a group of numbers used to indicate the position of a point, line, or plane.
  5. 8. a statement that the values of two mathematical expressions are equal (indicated by the sign =).
  6. 10. the point or place where something begins, arises or is derived.
Down
  1. 2. the label for the answers in midpoints or distance.
  2. 5. the middle point of a circle or sphere, equidistant from every point on the circumference or surface.
  3. 7. an amount of space between two things or people.
  4. 9. a straight line from the center to the circumference of a circle or sphere.