Across
- 2. a letter or other symbol that represents an unknown value
- 4. an angle having less than 90 degrees
- 6. an angle having 180 degrees
- 9. to give an answer it its simplest form
- 12. a full circle, 360 degrees
- 13. the height of a shape taken at right angles from its base
- 14. a number has been multiplied by itself
- 15. the outer boundary of a 2D shape
- 17. a triangle having all equal sides and angles
Down
- 1. to find the value of an expression
- 3. a triangle having a 90-degree angle
- 5. the distance around a circle
- 7. to replace a variable (pronumeral) with a value (number)
- 8. a triangle having two equal sides and two equal angles
- 10. an angle having between 90 and 180 degrees
- 11. the amount of square units inside 2D shape
- 14. a triangle having no equal sides or angles
- 16. distance from edge to edge of a circle, passing through the middle