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If OABC be a regular tetrahedron such ...

If OABC be a regular tetrahedron such that `OA^(2) + BC^(2) = OB^(2) + CA^(2) = OC^(2) + AB^(2)` then _

A

OA is perpendicular on BC

B

OB is perpendicular on CA

C

OC is perpendicular on AB

D

AB is perpendicular on BC

Text Solution

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The correct Answer is:
A, B, C
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