In circle E, AB // CD and BC is a diameter.
A B
.E
C D
If m AC = 4x-5 and m BD = 2(x+20), what is m
If m AC = 65 -2x and m BD = 4 (2x-5)-5, what is m
If m
4x-5 = 2(x+20) ==> x = 22.5 ==> m = 85
65 -2x = 4 (2x-5)-5 ==> x = 9 ==> m =47