Mathematics Crossword Puzzle

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Across
  1. 3. The point where X axis and Y axis meet is called______.
  2. 5. (0,-6) lies on Abscissa or Ordinate?
  3. 7. Find x: (81)^-4 ÷ (729)^2-x= (9)^4x
  4. 9. State true or false: 100,000,000,000 is a perfect square.
  5. 10. Find: [√7/5/ √10 +√3 ]+ [2√5/√6+ √5 ] - 3√2/√15 + 3 √2
Down
  1. 1. Find the square root of 4096.
  2. 2. Two irrational numbers if added gives a ____________ number.
  3. 4. If 72x is a perfect cube, x = ______
  4. 6. Irrational numbers are non terminating and non _________.
  5. 8. How many diagonals are there in a triangle?