Question: The cube ABCDEFGH in the figure has each edge equal to a. The area of the triangle with vertices at A, C and Fis

The cube ABCDEFGH in the figure has each edge equal to a.

The cube ABCDEFGH in the figure has each edge equal to a. The area of the triangle with vertices at A, C and Fis (a) 4 E D H B (b) 3 (c) 3a (d) 23a

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