Answer:131degrees
Step-by-step explanation:
Find the diagram attached
Since angle at a point is 360degrees, hence the sum of all the given angles will equate to 360degrees
20y-11+4y+6+7y-7 = 360
20y+4y+7y-11+6-7 = 360
31y -12 = 360
31y = 360 + 12
31y = 372
y = 372/31
y = 12
Get arcBC
arcBC = 4y+6+7y-7
arcBC = 4(12)+6+7(12)-7
arcBC = 48+6+84-7
arcBC = 131degrees
Hence the measure of minor arc BC is 131degrees
