Across
- 3. - introduced the axiomatical method still used in mathematics today
- 4. - 12 inches
- 5. - letters representing numbers
- 6. - Inventor of the numerical used to represent empty set
- 7. - The number when divided by 2 Gives its reciprocal , square of the number is ?
Down
- 1. - a circular statistical graphic material which is divided into slices to illustrate numerical proportion.
- 2. - any polyhedron bound by (4^2- 3^2 divide by 5 ) sides