Mia enlarged a plan for an outdoor stage. the original plan is shown below. she dilated the outdoor stage by a scale factor of 4 with the center of dilation at the origin. which ordered pair will be the coordinates of one of the new vertices? a (2,1) b (8,16) c (32,4) d (32,16)

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?