What is the median for the set of data? ages stem leaves 5 0, 4, 6 6 0, 2, 3, 4, 8, 8, 9 7 0, 2, 3, 4, 4, 4, 8, 9 8 4, 5, 6, 8 5|0 = 50 years old 70 71 72 74

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?