Answer:
x = 18
y = 27
Step-by-step explanation:
Since it says the polygons are similar, it can be concluded that the sides are proportional. If you line up the SR side with the VU side, you'll see that SR is 3x as large as VU. Apply that ratio of 3:1 for the rest of the values and you get ST (x) to be 6x3 which is 18, and RT (y) to be 9x3 which is 27.
Another way to do it is proportions.
4/12 = 6/x
4/12 = 9/y
cross multiply both sides, do some dividing, and you'll get the same answers.
