Geometry

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Across
  1. 2. - a quadrilateral with four equal sides and four right angles
  2. 4. - intersecting at or forming a right angle
  3. 5. a straight path that extends infinitely in both directions
  4. 7. - a quadrilateral with opposite sides parallel and equal in length
  5. 8. - a quadrilateral with four right angles
  6. 9. - a quadrilateral with only one pair of opposite sides parallel
  7. 10. Theorem - a formula that states that the sum of the squares of the two shorter sides of a right triangle is equal to the square of the hypotenuse.
  8. 11. a part of a line that has one endpoint and extends infinitely in one direction
  9. 13. - having the same shape and size
Down
  1. 1. - a four-sided polygon
  2. 3. a plane figure with three straight sides and three angles
  3. 6. a round plane figure whose boundary consists of points equidistant from a fixed point
  4. 8. - a quadrilateral with all sides equal in length
  5. 12. a location in a space that has no size or shape