Similar polygons are made through scaling either by stretching or squeezing the sides all by a common ratio. Here, the size changes. Congruent polygons are made by shifting or reflecting their position. Here, the size does not change.
Choice A has a dilution (or squeezing) and a translation (shifting). That makes similar polygons.
Choice B has a rotation. Nope.
Choice C has a shifting and a reflection. Nope.
Choice D has a rotation and shifting. Nope.
Thus choice A is best.
Answer: The range of the medians of the numbers left and right of the median of the entire data set.
Answer:
240
Step-by-step explanation:
Find the least common multiple of 30 and 80
30, 60, 90, 120, 150, 180, 210, 240, 270, 300
80, 160, 240, 320, 400