Respuesta :
Answer:
need more info
Step-by-step explanation:
Answer:
1. 100 - m = BC =
2. 40 - m∠DCF =
3. 80 - m = CD =
4. 50 - m∠ECB =
Step-by-step explanation:
I found this from DarcySea in this link, https://brainly.com/question/13873884
It's correct.