Figure B Is the image of the Fugure A. Which description explain how Figure A was transformed to create Figure B

  B.   Figure A was rotated 180° about the midpoint of FF'

Step-by-step explanation:

Points ABC are oriented clockwise, as are points A'B'C', so two reflections or rotation are involved. Segment AB is directed in the opposite direction of segment A'B', so the rotation must be 180°. These effects cannot be accomplished by translation or single reflections, nor can they be accomplished by rotation of 90°.

The midpoints of segments joining a point and its image all intersect at the center of rotation of 180°. The appropriate choice is B:

  Figure A was rotated 180° about the point in the middle of the line segment connecting F and F' to create Figure B.