Geometry - Shapes Forever

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Across
  1. 1. A chord that passes through the center of a circle.
  2. 5. The space on the outside of a 3D object.
  3. 6. A shape with many sides.
  4. 7. A 4-sided shape with two adjacent pairs of congruent sides.
  5. 10. The baby of a rectangle and rhombus.
  6. 11. A line connecting the middle of the circle to the edge.
  7. 13. A line that touches two ends on a circle.
  8. 14. Any shape with two pair of parallels.
  9. 15. Any five-sided shape.
  10. 16. A 4-sided shape with only one pair of parallels.
Down
  1. 2. The space inside a two-dimensional shape.
  2. 3. Any three-sided shape.
  3. 4. The outside measure of a shape.
  4. 8. Any four-sided shape.
  5. 9. A special name for the perimeter of a circle.
  6. 11. A 4-sided shape with four congruent sides.
  7. 12. A 4-sided shape with four right angles.