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Question: Let a, b, c be the position vectors of the vertices of a triangle ABC. The vector area of triangle ABC is


1) $\mathbf{a}\times \mathbf{b}+\mathbf{b}\times \mathbf{c}+\mathbf{c}\times \mathbf{a}$
2) $\frac{1}{4}(\mathbf{a}\times \mathbf{b}+\mathbf{b}\times \mathbf{c}+\mathbf{c}\times \mathbf{a})$
3) $\frac{1}{2}(\mathbf{a}\times \mathbf{b}+\mathbf{b}\times \mathbf{c}+\mathbf{c}\times \mathbf{a})$
4) $\mathbf{b}\times \mathbf{a}+\mathbf{c}\times \mathbf{b}+\mathbf{a}\times \mathbf{c}$
Solution: Explanation: No Explanation
Vector Product Cross Product of two vectors

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