If two lines intersect to form right angles, then they are perpendicular and they intersect to form four right angles. Given: m21 = 90 Prove: m2 = 90, mz3 = 90, m24 = 90 12 43 STATEMENTS 1. mZ1 = 90 2. 21 & 22 are a linear pair 3. 21 &22 are supplementary 4. m21+mz2 = 180 5. 90+m22 = 180 |6. m2290 7. m22m24 8. m2490 9. m21=mZ3 10. m2390 REASONS Choose from the following list of reasons. When entering your choice, only enter the corresponding letter associated with your answer choice. A. Converse Alternate Interior Angles B. Converse Corresponding Angles C. Converse Same Side Interior Angles D. Definition of Congruency E. Definition of Supplementary Angles F. Given G. Linear Pair Theorem H. Same Side Interior Angles are Supplementary I. Substitution Property of Equality J. Subtraction Property of Equality K. Transitive Property of Equality L. Vertical Angles Theorem