I think its D. warning I might be wrong lol
The area of a triangle is found using the formula Area = 1/2 x base x height.
Base = 8
Height = 18.
The area of 1 triangle = 1/2 x 8 x 18 = 72 square units.
There are a total of 4 sides, so total area = 72 x 4 = 288 units ^2
6n - 10 = 4n + 6
6n - 10 + 10 = 4n + 6 + 10
6n = 4n + 16
6n -4n = 4n - 4n + 16
2n = 16
2n/2 = 16/2
n = 8.
The solution is that the value of n = 8.
11/42
The way I got it is because I took 1/6 minus 3/7 to get the answer of f=11/42