Across
- 3. have written a book on numbers, theory of numbers and geometry.
- 4. calculating the heights of pyramids and the distance of the ships from the shore using geometry.
- 5. young Alexander the Great’s private tutor
- 6. the father of geometry
Down
- 1. relation of Euclidean geometry between the sides of a right triangle
- 2. the first person known to calculate the circumference of the Earth