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A square ABCD of diagonal length 2a, is ...

A square ABCD of diagonal length 2a, is folded along the diagonal AC so that the planes DAC, BAC are at right angles. The shortest distance between DC and AB is

A

`sqrt(2)a`

B

`2a//sqrt(3)`

C

`2a//sqrt(5)`

D

`(sqrt(3)//2)a`

Text Solution

Verified by Experts

The correct Answer is:
B
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