Across
- 3. not even
- 4. lines which bypass eachother
- 5. a surface of which one end or side is at a higher level than another
- 10. ...of compasses
- 12. the region between two concentric circles
- 14. "every integer greater than 1 is either a prime number or can be expressed in the form of primes"
- 15. set A is a ... of another set B if all elements of the set A are elements of the set B(A⊂B)
- 16. a right angled triangle has a hypotenuse and two of these
Down
- 1. a tool used for measuring or drawing angles
- 2. the action of moving something from its place or position
- 5. four plus three
- 6. each angular point of a polygon
- 7. the first coordinate/x-coordinate
- 8. convex deltoid
- 9. half of the diameter (in plural form)
- 11. a small insect typically having a sting and living in a complex social colony
- 13. a shape which has five sides