Answer:
160°
Step-by-step explanation:
The formula below gives the measure of an interior angle of a regular polygon of n sides.
[(n - 2)180]/n
[(18 - 2)180]/18
16(10)
160
Answer: 160°
Well, 120 divided by 2 is 60
60 times 3 is 180
Betty got 180
Answer:
Step-by-step explanation:
The price per gallon stays the same, so the relationship between the gallons put in and the money paid is the same and therefore, filling each car's tank with gas is proportional because they follow the same proportionality ratio
