Answer:
x = 6
Step-by-step explanation:
An angle bisector divides the segments on either side of it so they are proportional. That is ...
x/12 = 5/10
x = 12(5/10) = 6 . . . . . multiply by 12
Answer: 1
A=½bh
A=½(4•3)
A=½(12)
A=6 units sq