geometry

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Across
  1. 3. the pyramid has square bases, triangular
  2. 4. the cone has a straight line passing
  3. 6. surface.
  4. 7. sides are equal.
  5. 9. a square has four right angles and all
  6. 11. them, called sides.
  7. 13. the sphere has a closed surface
  8. 14. a quadrilateral is a four-sided polygon.
  9. 17. the parallelogram is a quadrilateralthat
Down
  1. 1. The triangle is formed by three points.
  2. 2. of the cone at the height.
  3. 4. the cube is a Solid with six equal square
  4. 5. the isosceles triangle has two
  5. 6. points
  6. 8. sides that are parallel two by two.
  7. 10. the middle call h then r the
  8. 12. vertices, three segments that
  9. 13. of the same length and a base.
  10. 15. which starts from the end of the
  11. 16. center,it is a solid limited by
  12. 18. the of which are equidistant (radius)
  13. 19. an arc has a portion of curve limited by