Question

Find the measure of arc BC.

Answer 1

It is 115 degres
BE is a diameter, so it equals 180 degrees
You have to find angle A, because the angle A will equal the arc measure of BC
In order to find A, you need to subtract 40 and 25 from 180
180-40-25=115
The measure of arc BC is 115 degrees
hope this helps:))

Answer 2

Arc BC = 180 - ( 40 + 25) = 180 - 65 = 115

hope it helps