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Find the area of a triangle having the p...

Find the area of a triangle having the points`A(1, 1, 1)`, `B(1, 2, 3)`and `C(2, 3, 1)`as its vertices.

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To find the area of the triangle formed by the points \( A(1, 1, 1) \), \( B(1, 2, 3) \), and \( C(2, 3, 1) \), we can use the formula for the area of a triangle in 3D space, which is given by: \[ \text{Area} = \frac{1}{2} \left| \vec{AB} \times \vec{AC} \right| \] ### Step 1: Find the vectors \( \vec{AB} \) and \( \vec{AC} \) ...
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