Content
- Principle 1
- A straight line is the shortest distance between two points
- Principle 2
- Only one straight line can be drawn between two points
- Principle 3
- Two straight lines can only intersect at one point
- Principle 4
- Lines equal to the same line are equal to each other
- Principle 5
- The whole is equal to the sum of its parts
- Principle 6
- The whole is greater that any of its parts
- Principle 7
- If "equals?" are added to "equals?" their sums are equal
- Principle 8
- If "equals?" are subtracted from "equals?" their answers are equal
- Principle 9
- Doubles of equals are equal
- Principle 10
- Halves of equals are equal
- Principle 11
- A, B, C: If A > B, and B > C, then A > C
- Principle 12
- All straight angles are equal