They only have 1 common point
Answer:
11.1
Step-by-step explanation:
G o o g l e
Answer:
m = 5, n = 2
Step-by-step explanation:

Answer:
m∠ABD = 20°
Step-by-step explanation:
The bisector makes angles ABD and BDC congruent, so ...
7x -1 = 4x +8
3x = 9 . . . . . . add 1-4x to both sides
x = 3
m∠ABD = (7x-1)° = (7·3 -1)°
m∠ABD = 20°