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triangleXYZ is similar to trianglePQR. I...

`triangleXYZ` is similar to `trianglePQR.` If ratio of perimeter of `trianglePQR` is `4 : 9` and if `PQ = 27 cm, then what is the length of XY (in cm)?

A

9 cm

B

12 cm

C

16 cm

D

15 cm

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