Final answer:
Triangle ABC is smaller than triangle QPR. They are similar triangles and the side lengths of ABC are half the length of the corresponding sides of QPR.
Step-by-step explanation:
Triangle ABC is smaller than triangle QPR. Since the transformations involved a dilation, the triangles are similar. Since similar triangles have proportional sides, we can say that the ratio of corresponding sides in the two triangles is equal. This means that the side lengths of triangle ABC are a certain fraction of the side lengths of triangle QPR. If the scale factor of the dilation is 1/2, then the side lengths of triangle ABC are half the length of the corresponding sides of triangle QPR.