alleryArea of parallelogram formed by ā and b̄ equals:
A|ā + b̄|
Bā · b̄
C|ā||b̄|
D|ā × b̄|
Answer & Solution
Correct answer: D. |ā × b̄|
The cross product magnitude |ā × b̄| equals the AREA of the parallelogram formed by the two vectors.
Area of triangle = (1/2)|ā × b̄|.
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