Question

The adjacent sides of a parallelogram are 7 = 21 – 3j + k and q = - 21 +4j – k. What is the area
of the parallelogram ?
1) 4 units
2) 7 units
3) √5 units
1) √8 units​

Answer 1

Answer:

the answer for this is option 3)

$\sqrt{5} units$