Answer:
The top two pairs
Step-by-step explanation:
A similar polygon is when two pairs of a shape share the same scale factor, or when you multiply the sides by the same number, like a common denominator of a fraction. For example, for the first one, 18/4.5 is 4 and 6/1.5 is also 4. This means that this pair has a scale factor of 4, meaning it is a similar polygon. Same for the top right. 40/8 = 5, and 15/3 = 5, making this also a correct answer. One the other hand, 1225/3.5 is 350, whereas 144/1.2 is 120, making this not a similar polygon. Finally, the last one. 13/2 = 2.5, whereas 5/2.5 is equivalent to 2, making this not a similar polygon.
