Across
- 3. is difficult
- 4. triangles have 3 equal sides
- 5. are basis of maths
- 7. can have an infinite number of diameters bisecting it
- 9. numbers have never ending and un-repeating decimal places
Down
- 1. has 4 sides
- 2. are add on's onto the numbers
- 6. angle is 90 degrees
- 8. is written as 22/7 as a way for its everyday use