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Across
  1. 1. A 3-dimensional solid object that contains 4 triangles and 1 square or rectangle
  2. 5. Two numbers or sometimes a letter and a number, that locate a specific point on a grid, known as a coordinate plane
  3. 8. A closed figure made up of line segments in a two-dimensional plane
  4. 12. Two lines that meet or intersect each other at right angles
  5. 14. The amount of space in a certain 3D object
  6. 15. angle 90-degree angle
Down
  1. 2. A triangle whose all three sides have different lengths, and all three angles are of different measures
  2. 3. A triangle with two equal slides.
  3. 4. what a 3D shape would look like if it was opened out and laid flat.
  4. 6. the total length of its boundary
  5. 7. A 3-dimensional geometric shape with a polygon as its base and the lateral surfaces as triangles that meet at a common vertex
  6. 9. area The sum of the areas of the individual sides of a solid shape
  7. 10. polygon A polygon that is direct equiangular and equilateral
  8. 11. The amount of space occupied by a two-dimensional figure
  9. 13. A point where two lines or curves meet