4926.25965251
I used a calculator because it makes solving this much easier
Well, 9/10 is the same as 9 10ths, the decimal that represents that is 0.9 because it is also 9 10ths
Answer:
x=63
Step-by-step explanation:
The two interior angles add up the the exterior angle, so 51+x+12=2x. From there, solve to get x=63. Hope this helped!
Well if you have three and add negative 3 it equals 0
<h3>
Answer: 1260</h3>
Work Shown:
We have 9 sides of this polygon. See the diagram below. So n = 9
Plug that into the formula below to find the sum of the interior angles
S = 180(n-2)
S = 180(9-2)
S = 180*7
S = 1260