Answer:
x=6
Step-by-step explanation:
We can use ratios to determine the value of x
x 9
------ = ----------
10 15
Using cross products
15x = 9*10
15x = 90
Divide each side by 15
15x/15 =90/15
x = 6
6.
Triangles PQR and P'Q'R' are similar.
By similar triangles, the corresponding sides are in the same ratio
x / 10 = 9/15
x = 6.
