Letters put together

123456789101112131415
Across
  1. 2. The amount of space occupied by a two-dimensional figure
  2. 5. A triangle with two equal slides.
  3. 7. 90-degree angle
  4. 8. A 3-dimensinol geometric shape with a polygon as its base and the lteral surfaces as triangles that meet at a common vertex
  5. 9. A triangle whose all three sides have diffrent lengths, and all three angles areof diffrent measures
  6. 12. The sum of the areas of the individual sides of a solid shape
  7. 13. Two numbers or sometimes a letter and a number, that locate a specific point on a grid, known as a coordinate plane
  8. 15. A closed figure made up of line segments in a two-dimesinol plane
Down
  1. 1. the total length of its boundary
  2. 3. The amount of space in a certain 3D object
  3. 4. lines Two lines that meet or intersect each other at right angles
  4. 6. A 3-dimensinol solid odject that contains 4 triangles and 1 square or rectangle
  5. 10. A polygon that is direct equiangular and equilatral
  6. 11. A piont where two lines or curves meet
  7. 14. what a 3D shape would look like if it was opened out and laid flat.