Answer:
336 cm²
Step-by-step explanation:
Applying Heron's Formula to find the area of ΔPSR :
⇒ s = 98/2 = 49
⇒ s - a = 49 - 25 = 24
⇒ s - b = 49 - 25 = 24
⇒ s - c = 49 - 48 = 1
⇒ Area = √49 × 24 × 24 × 1
⇒ Area = 7 × 24
⇒ Area = 168 cm²
But, ΔPSR = ΔPQR (same side lengths).
⇒ Area (PQRS) = Area (PSR) + Area (PQR)
⇒ Area (PQRS) = 2 × Area (PSR)
⇒ Area (PQRS) = 2 × 168
⇒ Area (PQRS) = 336 cm²
