Find the missing side length.
A)10
B)11
C)12
D)13
![Find the missing side length A10 B11 C12 D13 class=](https://us-static.z-dn.net/files/d48/b914f5957781782ca6402d0778680ab1.png)
Answer:
10
Step-by-step explanation:
10 because of proportionality
15/21 = x/14 => x = 14*15/21