Answer:
6.
Step-by-step explanation:
1) OA=d/2=20/2=10;
2) AB=AC/2=16/2=8;
A) 50.3 km
Not sure........
2/3 30/60 30
5 (d)
2(6+4) - 3(5)
2× 10 - 25
20-15 = 5
I hope this helps you.
