2. 22 23 3. 23 24 3. 4. 41 24 4. V. Given: 21 and 22 are complementary Prove: XA1 XC 1. 21 and 22 are complementary 1. 2. m21+ mz2= 2. 3. mz AXC-mz1+mz2 3. 4. mz AXC = 4. 5. ZAXC is a right angle 5. 6. 6. VI. Given: 21 and 22 are supplementary Prove: 23 and 24 are supplementary L 2. 3. 4. Skip this step 5. 1. Given 2. Def. of supplementary angles 3. Vertical angles are congruent 4. Def. of congruent angles 5. Substitution 6. Def. of