Answer:
15 cm
Step-by-step explanation:
Assuming that the two triangles shown in the image are similar triangles, the smaller would've been dilated by a scale factor of 1.5, because 7.5 is 3/2 of 5, which can be converted to 1.5
Apply the scale factor of 1.5 to the side on the smaller triangle that corresponds to side XZ (PR)
To do this, we need to multiply
10 x 1.5 = 15
Your answer is 15 cm
