maths crossword

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Across
  1. 2. a linear equation in two variables has ____ solutions
  2. 3. triangle with 3 equal sides
  3. 4. a number that can be written in the form of p/q
  4. 7. triangle with two sides equal
  5. 8. a number that can be written in the form of p/q
  6. 9. a linear equation of the form ax + by = c where a and b are not zero is in ______
Down
  1. 1. the y coordinate is also known as
  2. 2. a number without fraction
  3. 5. the point of intersection of the axes called
  4. 6. The father of geometry