Across
- 3. Birth place of heron
- 4. other name of trapezoids
- 6. The other name for heron's formula
- 9. Point on y-axis also known as
Down
- 1. number of books written by heron
- 2. Another name for co-ordinate geometry
- 3. Point on x-axis also known as
- 5. Number of axes in the cartesian plane
- 7. The point where x-axis and y-axis meet
- 8. The person who derived the formula for area of triangle on basis of its sides