Across
- 3. the opposite angles formed by two intersecting lines
- 7. where two figures intersect
- 9. middle number in a group of numbers
- 10. a plane with at least three straight lines and angles
- 11. the amount of turn between two points the have a common endpoint
Down
- 1. a triangle with one right angle
- 2. points on the same path
- 4. line that has one point then has no end
- 5. a triangle with three acute angles
- 6. a shape with four right angles
- 8. add all together then divide