Answer:
The answer is D
Step-by-step explanation:
because if you measure and solve it you get supplementary angles. Also all the angles total equal to 360.
6÷2=3. or 9÷3=3 or 18÷6=3
Answer: D y=20
Step-by-step explanation: I minus 115 and 120 and and multiplied 4x and i got y=20. I hope this helps
Hi there! :)

Find the central angle using a ratio in regards to angle and circumference.
The radius is 27 units, so use the following equation to calculate circumference:
C = 2rπ
Therefore:
C = 2(27)π = 54π
Since we have the total circumference, we can write the following proportion:

Cross multiply:
54πx = 6480π
Divide both sides by 54π to isolate for x:
x = 120°