Answer:
Step-by-step explanation:
The sum of the external angles of every polygon = 360 degrees
So the n-gon must have its interior angle sum = 360 degrees also.
So what polygon has interior angle sum = 360?
Answer:
greatest common factor is 12
Step-by-step explanation:
12*7 = 84
12*3 = 36
this means that this is the factor that they both share that has the highest value out of all the factors they share
First one.....................