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Question
A rectangular parallelopiped is formed by planes drawn through the points (5, 7, 9) and (2, 3, 7) parallel to the coordinate planes. The length of an edge of this rectangular parallelopiped is
Options
2
3
4
all of these
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Solution
all of these
The given points (5, 7, 9) and (2, 3, 7) are two diagonally opposite vertices of the parallelopiped as all of their coordinates are different
∴ Edges of the parallelopiped = |5−2|, |7−3|, |9−7| =3, 4, 2
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