Volume of tetrahedral

Geometry Level pending

\[ \vec r (22 \vec i + 33\vec j + 44 \vec k ) = 66 \\ \vec r (22\vec i + 33 \vec j) = 0 \\ \vec r (22\vec i + 44 \vec k) = 0 \\ \vec r (33\vec j + 44 \vec k) = 0 \]

Find the volume of the tetrahedral formed by the planes above.

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