Question

If m BOC = 30°, then m =30150330

Answer 1

step 1

Find out the measure of minor arc BC

If mBOC=30 degrees

then

minor arc BC=30 degrees ------> by a central angle

step 2

we have that

arc CAB+arc BC=360 degrees -----> by a complete circle

so

arc CAB+30=360

arc CAB=360-30

arc CAB=330 degrees