Which triangles could not be similar to triangle abc ?

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Atriangle has verticals at b(-3,0), c(2,-1), d(-1,2). which transformation would produce an image with verticals b”(-2,1), c”(3,2), d”(0,-1)?

The area of the map is the product of the length and width. write and expression for the area as the product of the two binomials do not multiply