HG 4
A9. Things equal to the same thing or to equal things are equal to each other.
A10. If equals are added to equals, the sums are equal.
A11. If equals are subtracted from equals, the differences are equal.
A12. The whole is greater than any of its parts.
A13. A geometric figure can be moved without change of size or shape.
D10. Given three points A, B, and C not on the same line. The figure formed by connecting the three points is a triangleDABC with vertices at the three points.
A14. If two sides and the included angle of one triangle and congruent to two sides and the included angle of another triangle, the triangles are congruent.
T1. Supplements of congruent angles are congruent.