I will mark you brainiest if you can answer this

Answer:
Step-by-step explanation:
a) PQ' / PQ = 12/8 = 3/2
Q'R' / QR = 15/10 = 3/2
PR' / PR = 9/6 = 3/2
b) this means that triangle PQR is congruent to triangle PQ'R'. Because if we divide each side we get 3/2 (SSS)
c) because QR and Q'R' are parallel and they have same angles.
now please mark me brainliest as you promised