Answer:
Explanation:
The segments of the triangles are proportional.
Add all the measurements on the left to get the complete length of the
left side - 9 + 3 + 12 = 24
Form a proportion with a smaller triangle still using the left side,
this time 9 + 3 = 12
Use the bottom measurement of 22 to complete the proportion:
You have:
24/22 = 12/x
cross multiply - 12 × 22 = 264
divide by 24 = 11
x = 11