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An equilateral triangle has each of its ...

An equilateral triangle has each of its sides of length 4 cm. If `(x_(r),y_(r))` (r=1,2,3) are its vertices the value of `|{:(x_(1),y_(1),1),(x_(2),y_(2),1),(x_(3),y_(3),1):}|^2`

A

192

B

768

C

1024

D

128

Text Solution

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The correct Answer is:
A
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