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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).

Text Solution

AI Generated Solution

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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Knowledge Check

  • What is the area of the triangle with vertices (1, 2, 3), (2, 5, -1) and (-1, 1, 2) ?

    A
    `(sqrt155)/(2)`
    B
    `(sqrt175)/(2)`
    C
    `(sqrt155)/(4)`
    D
    `(sqrt175)/(4)`
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