the sum of the interior angles in an ngon is (n-2)*180
so if the sum of the interior angles is 2880, then
2880=(n-2)*180
solve for n
divide both sides by 180
14=n-2
add 2 to both sides
16=n
n=16
Answer:
3n + 5 =60
Step-by-step explanation:
Answer : n=55/3
5/9
5 times 4= 20
12 times 3=36
20/36=5/9
