Here c1=−32,c2=−54,d1=104,d2=54,m1=−12,m2=−34
∴Area=∣∣ ∣ ∣ ∣∣(−32+54)(104−54)(−12+34)∣∣ ∣ ∣ ∣∣=54 sq units
If the area of the parallelogram whose sides are x + 2y + 3 = 0, 3x + 4y - 5 = 0, 2x+4y+5=0 and 3x + 4y - 10 = 0 is 'a' sq. unit. Find the value of 4a