I need help plzzz :(
Thanks

Sorry, Im not sure but I wish you the best of luck!!

Step-by-step explanation:

Part 1)

Part 2)

Part 3)

Part 4)

Step-by-step explanation:

Part 1) Find the measure of arc AB

we know that

----> by central angle

we have

therefore

Part 2) Find the measure of arc ABC

we know that

The central angle of complete circle is equal to 360 degrees

so

Part 3) Find the measure of arc BAC

we know that

----> by angle addition postulate

we have

---> by central angle

---> by central angle

so

Part 4) Find the measure of arc ACB

we know that

The central angle of complete circle is equal to 360 degrees

so

substitute