What is the area of the parallelogram whose adjacent sides are A = 3î m and B = (2î + 4ĵ) m?
Correct answer B. 12 m²
Explanation
Area = |A × B| = |AₓBᵧ − AᵧBₓ| = |3 × 4 − 0 × 2| = 12 m². Half of this, 6 m², would be the area of the triangle.
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