Softball18
New member
- Joined
- Sep 25, 2012
- Messages
- 1
Okay so I am doing a two-column proof and i need help finsihing it! Well, writing the reason. thanks!
Given: <2 is supplementary to <3
Prove: <1 is congruent to < 3
1. <2 is supplementary to < 3 -Given
2. m<2 +m<3 = 180
3. m<1 + m<2 =180
4. m<1 + m<2 = m<2 + m< 3 -Substitution Prop.
5. m<2 = m<2 -Reflexive Prop(?)
6. m<1 = m< 3 -Subtraction Prop(?)
7. <1 is congruent to < 3
Given: <2 is supplementary to <3
Prove: <1 is congruent to < 3
1. <2 is supplementary to < 3 -Given
2. m<2 +m<3 = 180
3. m<1 + m<2 =180
4. m<1 + m<2 = m<2 + m< 3 -Substitution Prop.
5. m<2 = m<2 -Reflexive Prop(?)
6. m<1 = m< 3 -Subtraction Prop(?)
7. <1 is congruent to < 3
