click below
click below
Normal Size Small Size show me how
Proof Justifications
Common Proof Justifications
| Question | Answer |
|---|---|
| Definition of Supplementary <'s | 2 <'s are Suppl. iff they sum to 180 |
| Definition of < Congruence | m<1=m<2 iff <1 is congruent to <2 |
| Definition of < bisector | Ray BD bisects <ABC iff <ABD is congruent to <DBC |
| Definition of Complementary <'s | 2 <'s are Comp. iff they sum to 90 |
| Definition of Right <'s | an < is right iff m=90 |
| Definition of perpendicular | 2 lines perpendicular iff they form 4 right <'s |
| vertical < therom | if 2 <'s are vertical, then they are congruent |
| Right < Therom | all right <'s are congruent |
| Supplement Therom | If 2<'s form a linear pair, they are supplementary |
| G: <1+<2 are Suppl. <2+<3 are Suppl. P: <1 is congruent to <3 | <'s suppl. to the same < are congruent |
| G: <1+<2 are Comp. <2+<3 are Comp. P: <1 is congruent to <3 | <'s comp. to the same < are congruent |