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The volume of the parallelopiped, if a=3...

The volume of the parallelopiped, if `a=3hati,b=5hatj and c=4hatk` are coterminous edges of the parallelopiped is

A

30 cu unit

B

20 cu unit

C

60 cu unit

D

none of these

Text Solution

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The correct Answer is:
C
Volume of parallelopiped `=[abc]`
`=(3hatixx5hatj)*4hatk`
`=60(hati+hatj)*hatk=60hatk*hatk`
`=60` cu unit
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