Respuesta :

mathmate
Dilation:

The dilation factor is the length of image/preimage = 1.5

Thus
Q'R'/QR=1.5
Q'R'=1.5QR = 1.5 (5 cm) = 7.5 cm

(Edited)
So you want to know the length of the segment QR? Here it is:

So first we multiply by 1.5 the side like this: [tex]5*1.5[/tex], we get 7.5, and that is the answer!

Hope this helped! c:

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