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Find the area of the triangle with vert...

Find the area of the triangle with vertices A(1, 1, 2), B(2, 3, 5) and C(1, 5, 5).

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To find the area of the triangle with vertices A(1, 1, 2), B(2, 3, 5), and C(1, 5, 5), we can follow these steps: ### Step 1: Find the vectors AB and AC First, we need to find the vectors AB and AC. - The vector AB can be calculated as: \[ \vec{AB} = \vec{B} - \vec{A} = (2 - 1, 3 - 1, 5 - 2) = (1, 2, 3) ...
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