AB is a chord that passes through the center O, which means the central angles BOC and AOC are supplementary. So

Central angles and the arcs they subtend have the same measure, so that


68.32 divided by 2.8 is 24.4. I hope this helps!
Answer:
the total weights in tons is 18
Step-by-step explanation:
The computation of the total weights in tons is shown below:
The weight of 8 cars would be
= 4,500 pounds × 8 cars
= 36,000 pounds
Now as we know that 1 ton = 2,000 pounds
So for 8 trucks it would be
= 36,000 pounds ÷ 2,000 pounds
= 18 tons
Hence, the total weights in tons is 18