write P on the space provided if you think the statement is a postulate and write T if it is a theorem

1. All right angles are congruent
2. Vertical angles are equal in measure
3. Two points determine a line
4. If two lines intersect then they intersect at exactly one point
5. Two planes intersect a line
6. If two points lie in a plane, then the line containing those points lies in the plane
7. Through any three non-collinear points there is exactly one plane containing them
8. If a quadrilateral is a rectangle, then it is a parallelogram
9. If two congruent angles are supplementary, then each is a right angle
10. The sum of the measure of the angles of a triangles is 180°