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Mathematics 17 Online
OpenStudy (anonymous):

the coordinates of the vertices of two rectangles, Rectangle A'B'C'D' and Rectangle P'Q'R'S' are given below. Rectangle A'B'C'D' – A(-4, 4), B(2, 4), C(2, 0), D(-4, 0) Rectangle P'Q'R'S' – P(-8, 8), Q(4, 8), R(4, 0), S(-8, 0) Jake scaled both the rectangles about their centers to create two congruent rectangles A′B′C′D′ and P′Q′R′S′. By which factor did he most likely scale Rectangle A'B'C'D' and Rectangle P'Q'R'S'?

OpenStudy (anonymous):

please helpp

hero (hero):

What exactly do you need help with regarding this question?

OpenStudy (anonymous):

the answer and how to do it

hero (hero):

In general, to find the scale factor of two similar figures: \[(\frac{x'}{x} , \frac{y'}{y}) \] Where (x',y') = the coordinate of the second image, and (x,y) = coordinate of the first image. In this case, since 2 x (-4,4) = (-8,8) 2 x (2,4) = (4,8) 2 x (2,0) = (4,0) 2 x (-4,0) = (8,0) We know that the scale factor is 2.

hero (hero):

I hope any of that makes sense.

OpenStudy (anonymous):

thanks. i really appreciate it. this helped out alot

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