Answer:

Step-by-step explanation:
Since
due to
is an angle bisector, we have the following:

Answer:
We just finished this in geometry and i hated it lol but i think <DBA and <CBA are equal and AD=AC
11 feet I think, hope this helps
1st digit can be 1-9 which is 9 numbers
2nd digit can be 1-9 which is 9 numbers
3rd digit can be 4-7 which is 4 numbers.
Total combinations = 9 x 9 x 4 = 324