Given: 3AB = 7AD and 3AC = 7AE
Prove: ^ABC - ^ADE
Statements
Reasons
1. 3AB = 7AD
1. given
2.
AB
AD
2. division property
B
3. 3AC = 7AE
А
D
3. given
4 AC
3
4.4
E
5
AB
AD
AC
AE
5. substitution property
Complete the steps of the proof.
6. ZBAC and ZDAE are
vertical angles
6. def. of vertical angles
7. ZBAC 2DAE
7. vertical angles theorem
8. AABC - AADE
8.