The translation the maps triangle XYZ to X'Y'Z' is
A rotation 180 degrees about the origin and 2 units down
What is rotation as used in transformation
A rotation is a type of transformation that moves points or objects in a circular manner around a fixed point.
This fixed point is called the center of rotation.
Rotating the image, 180 degrees, using the origin as the center of rotation will make the images XYZ and X'Y'Z' coincide