I need help finding the m∠1 using the given information. I am not very sure how to do 7 through 8. I know the answers but I dont know how to do the work. I would really appreciate the help as I need sleep.​

I need help finding the m1 using the given information I am not very sure how to do 7 through 8 I know the answers but I dont know how to do the work I would re class=