Maths Crossword

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Across
  1. 3. If the probability chance of something happening is certain, the percentage probability is?
  2. 5. A system used to give positions on a graph.
  3. 7. LCM of 90 and 175
  4. 9. Square Root of 144
  5. 10. A 90 degree angle is called a...?
  6. 11. The fourth prime number
  7. 13. Invented theory involving the hypotenuse to find triangle sides
Down
  1. 1. The amount of 3D space an object takes up
  2. 2. The distance around a circle
  3. 4. X multiplied by 0 equals?
  4. 6. 5 cubed
  5. 8. Sequence where a number is found by adding the two numbers before it.
  6. 12. The product of two negative numbers multiplied is?
  7. 14. Equations or Expressions involving unknowns