Across
- 2. Distance. How far from one point to another.
- 4. A line bounding a plane figure. Triangles have three of them.
- 6. A line segment that goes from one corner to another, but is not an edge.
- 7. The numbers 0, 1, 2, 3, 4, 5, ...
- 8. The result of adding two or more numbers.
- 10. A statement that can be demonstrated to be true by accepted mathematical operations and arguments.
Down
- 1. The size of a surface.
- 3. The edge opposite to the right angle in a right-angled triangle
- 4. The result of multiplying a number by itself.
- 5. A type of angle which is equal to 90°.
- 9. Shows a statement to be true using definitions, theorems and postulates.