mathemaics basic conceot

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Across
  1. 4. Type of quadrilateral with all sides equal
  2. 7. Operation that results in a difference
  3. 9. Concept of "groups" in maths
  4. 11. Type of quadrilateral with opposite sides equal
  5. 14. Type of triangle with all sides equal
  6. 15. Type of number that can be expressed as a ratio
  7. 16. Ratio of a circle's circumference to its diameter
  8. 17. Formula for volume of a cube (side_______³)
  9. 20. Operation that results in a quotient
Down
  1. 1. Angle whose measure is 90 degrees
  2. 2. Concept of "sharing equally" in maths
  3. 3. Type of angle whose measure is less than 90 degrees
  4. 5. Operation that results in a product
  5. 6. number Set of whole numbers, integers, and fractions
  6. 8. Type of fraction that is always less than 1
  7. 10. Formula for area of a circle (π_______²)
  8. 12. HCF and LCM are types of ______
  9. 13. WIDTH Formula for perimeter of a rectangle (2×_______+2×_______)
  10. 18. Formula for area of a triangle (1/2×base×_______)
  11. 19. Shape with five sides