Across
- 2. numbers which can be represented on the no. line
- 5. neither prime nor composite
- 6. shape having perpendicular diagonals
- 8. sum of complementary angles
- 9. he discovered √ 2
Down
- 1. a line which touches a circle at only one point
- 3. 7 sided polygon
- 4. property of figures exactly the same (when superimposed)
- 7. longest side of a right angled triangle