Answer:
Step-by-step explanation:
The formula for finding the sum of the measure of the interior angles is (n - 2) * 180. To find the measure of one interior angle, we take that formula and divide by the number of sides n: (n - 2) * 180 / n.
Bro use Socratic that will help you.
You can use cubes to help you write an expression and model the problem by using the cubes in replace of numbers. It should be a lot easier. Then after you finish you just have to write it down. There are other ways, but this is just one.
432.2 / 4 = 108.1 <== avg of what 1 tank holds
1/2 full = 108.1/2 = 54.05