In the figure below, triangle PQR is an isosceles triangle, PR = QR, and mZPQR = 42° P .Q R S Note: picture not drawn to scale What is mZQRS? A. 48° B.84° C.138° D. 96°​

b

step-by-step explanation:

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya

i think the answer is b. i hope i !