12. Given: BD LBC: LABD = LDBE
Prove: LABD and ZEBC are complementary
Statements
1. BD L BC
2. ZDBC is a right angle
3. m/DBC= 90°
4. mDBE+mZEBC= m/DBC
5. m/DBE+m/EBC= 90°
6. LABD ZDBE
7. m/ABD = m/DBE
8. m/ABD+ m/EBC= 90°
9. ZABD and ZEBC are complementary
1.
237
3.
given
5.
6.
14. given
7.
B.
Reasons