LESSON 3.2
In Exercises 23-31, complete the two-column proof.
GIVEN: p[ 9.9|r
PROVE: p[r
Statements
23. p l q ____________________
24. ü 1 is a right angle. ________
25. mů 1 = 90°________________
26. q|r _____________________
27. ülü 2____________________
28. mũ I = mũ 2_______________
29. mũ 2 = 90°________________
30. ü 2 is a right angle._________
31. p[r ______________________