In part (a), prove that h H k. In parts (b) and (c), solve for x given that q H p and 5 H r, respectively. A q h 33 a. Y x+y=180 b. x B x k 25 C P A S 127'0 c. 3); 145 C a.Whyish||k? O A. Since x+ y = 180 and if x' is the corresponding angle to x, then x' is complementary to y and x' +y= 180. Therefore x' and x both have the same measure, 90 - y. 0 B. Since x and y are supplementary angles, the lines are parallel. O C. Since x+ y = 180 and if x' is the corresponding angle to x, then x' is supplementary to y and x' + y =180. Therefore x' and x both have the same measure, 180 - y. 0 D. Alternate interior angles are congruent