1. It is possible to draw a straight line from any point to any other point.
2. It is possible to produce a finite straight line indefinitely in that straight line.
3. It is possible to describe a circle with any point as center and with a radius equal to any finite straight line drawn from the center.
4. All right angles are equal to one another.
5. If a straight line intersects two straight lines so as to make the interior angles on one side of it together less than two right angles , these straight lines will intersect if indefinitely produced, on the side on which are the angles which are together less than two right angles.