Across
- 2. Sign used in subtraction
- 5. Amount of space taken by 3D shapes
- 9. Longer dimension of a rectangle
- 10. Three-sided shape
- 11. Mathematician who found the theorem a² + b² = c²
- 12. Nine-sided shape
- 15. Get rid of the surd in the denominator
- 16. Means multiplication
- 17. Positive or negative whole number
- 18. Sign used in addition
- 19. Get rid of the brackets
Down
- 1. Adjective used to describe a leading question
- 3. Three-sided shape having two equal sides
- 4. Take away
- 6. Means Triangles measurement in Greek
- 7. Seven-sided shape
- 8. angle greater than 90 degrees but less than 180
- 13. An angle measuring less than 90 degrees
- 14. Put the brackets back in
- 16. Approximately equal to 3.14