Question

One of the faces $ABCD$ of a cubical block is transformed to $A^{\prime }{B}^{\prime }{C}^{\prime }{D}^{\prime }$. What type of transformation has taken place?

• A. Neither $A$ nor $B$
• B. Rotation of ${180}^o$ counterclockwise about the origin
• C. Rotation of ${180}^o$ clockwise about the origin
• D. Either $A$ or $B$

Answer 1

The correct option is D Either $A$ or $B$

As coordinate A lies on the origin, when rotated ${180}^o$ clockwise and counterclockwise, the resultant image in both the rotations will come on the third quadrant with the same shape and size.
Hence, the correct answer is option C.