Geometry

1234567891011
Across
  1. 2. any parallelogram with equal sides, including a square
  2. 3. the part of a straight line considered as originating at a point on the line and as extending in one direction from that point
  3. 6. the intersection point of two sides of a plane figure
  4. 8. a quadrilateral having both pairs of opposite sides parallel to each other
  5. 10. a continuous extent of length
  6. 11. a position in space
Down
  1. 1. a polygon with four sides
  2. 2. a straight line extending from the center of a circle or sphere to the circumference or surface
  3. 4. a straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end
  4. 5. a triangle that has two sides of equal length
  5. 7. a quadrilateral plane figure having two parallel and two nonparallel sides
  6. 9. a triangle having three unequal sides and angles