Answer: <BOC and <COD are supplementary. The sum of their angle measures is 180 degrees.
Step-by-step explanation:
Since angles BOC and COD both form a horizontal line (line BOD) when added together, the two angles are supplementary. Supplementary angles always equal 180 degrees when added together because they form a straight line, or half of a circle.
Therefore, <BOC and <COD are supplementary, and the sum of their angle measures is 180 degrees.
I hope this helps!
