Question

the adjacent sides of a paralleogram are A=2i-3j=5k and B=-2i+4j-k what is the area of the paralellogram

Answer 1

Answer:

18.89

Explanation:

assuming that you have A = 2i - 3 j + 5k

area of parallelogram is |A x B|

by solving the cross product:

i (3-20) - j (-2+10) + k (8-6)

we get -17i -8j +2k

now apply √(17)^2 + (8)^2 + (2)^2

= 18.89