How do I figure this out

polygons B and E are similar to polygon A.

Step-by-step explanation: for shapes to be similar, they need to have the same side-to-side ratio. For example, Lines QR, RS, and QP are 2 units long in polygon A, and line PS is 4 units long. In polygon E, the slanted side is also 2 units long, as well as the adjacent side and opposite side, and the bottom(long side) is also 4 units long. In Polygon B, the slanted side is 4 units long, but if you look at the opposite and upper adjacent sides, they are also 4 units long, and the longer side is 8. If you put the slanted side over the long side(2/4 for polygon A) for two different polygons and they are equal, the polygons are similar.

2/4=4/8

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