Add all the sides together
7.2+14.8+16.1+18 = 56.1
Answer:
3
Step-by-step explanation:
Intercept theorem
DE // CB ⇒ 
⇒ 
⇒ ? = 3
Multiply dc over one on both sides on the left it’ll be cancelled out with a alone and on the right it would be b*dc - from a freshman
Easy. 8 hats because no one likes hats anymore.