alleryThe area of a parallelogram with sides a and b uses the magnitude of their:
ADifference
BCross product
CDot product
DVector sum
Answer & Solution
Correct answer: B. Cross product
1. The two adjacent sides are given as vectors.
2. Their cross product has magnitude base times height.
3. So the area is the magnitude of the cross product.
_Source: syllabus Mathematics Part II, Chapter 10, Vector Algebra._
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