Question

two adjacent sides of a parallelogram are represented by the two vector l^+2j^ and 5l^+2j^.what is the area of parallelogram?​

Answer 1

Answer:

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Answer 2

Answer:

Area of parallelogram = 8 sq. units

Explanation:

a = i +2j

b = 5i + 2j

a X b = (i + 2j) X (5i + 2j) = 2 k - 10 k = -8k

Area of parallelogram = |a X b| = $\sqrt{(-8)}$²  = 8 sq. units