Geometry word puzzle

12345678910111213141516171819202122232425262728293031323334353637383940414243444546
Across
  1. 1. shape with 3 sides and 3 angles
  2. 6. triangle- a triangle with all equal sides
  3. 7. area- total area of all the faces of a 3d object
  4. 8. a polygon with 4 sides
  5. 9. angle- a 90 degree angle
  6. 10. area- total length of sides
  7. 11. lines- lines that cross each other at a point
  8. 15. triangle- a triangle that has two sides of equal length
  9. 18. a half of a sphere
  10. 21. is the total length of the boundary or the sum of all sides of a 2d object
  11. 22. angle- less than 90 degrees angle
  12. 23. shape with 4 equal sides and 4 right angles
  13. 26. triangle- a triangle with no equal sides
  14. 27. closed figure made of lines straight sides doesn't intersect itself
  15. 31. 3.14
  16. 32. when a shape can be divided into two equal parts
  17. 33. a shape thats 3d with a circular base and a curved surface that connects to a point called the apex
  18. 34. a straight line of a circle that touches the circle at exactly one point
  19. 35. shape has 5 sides of equal length
  20. 36. 3d shape with 2 parallel circular bases and a curved surface connecting them
  21. 37. a quadrilateral with one pair of parallel sides
  22. 40. is the measure of the amount of a space in a 2d object
  23. 42. a quadrilateral with two pairs of adjacent sides that are equal in length
  24. 43. two lines or rays meet at a common point
  25. 44. figures- shapes that are the same size and shape
  26. 45. a 3d shape with a polygonal base and triangular sides
  27. 46. of the diameter
Down
  1. 2. a start point on a line but no end
  2. 3. more than 90 degrees angle
  3. 4. a shape with 4 sides with opposite sides that are parallel
  4. 5. shape has 4 sides and 4 right angles but it not all the sides are equal
  5. 12. a perfectly round 3d shape
  6. 13. distance around a circle
  7. 14. you times the radius times by 2 to find it
  8. 16. straight line that connects two points spans infinitely in both directions
  9. 17. shape with no sides or angles
  10. 19. a part of a circle in the region enclosed by two radii and arc
  11. 20. lines- lines that never intersect and stay the same distance apart
  12. 24. a quadrilateral with all 4 sides of equal length
  13. 25. is the measure of space occupied by a 3d object
  14. 27. a 3d shape with polygonal faces straight edges and sharp corners
  15. 28. polygon- a polygon that has sides or angles of different lengths
  16. 29. sides of equal lengths
  17. 30. used for stop signs
  18. 31. A location in space that is represented by a dot
  19. 38. triangle- a triangle with a 90 degree angle
  20. 39. theorem- A square + B squared = C squared
  21. 41. figures- shapes that are the same shape but different sizes
  22. 44. a straight line that connects two points on the circumference of a circle