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An equilateral triangle has each side equal to a, If `(x_1, y_1) , (x_2, y_2) , (x_3, y_3)` are the vertices of the triangle then `|[x_1 , y_1, 1] , [x_2, y_2, 1] , [x_3, y_3, 1]|^2=`

A

64

B

128

C

192

D

256

Text Solution

Verified by Experts

The correct Answer is:
C
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