It’s c (plane) if your asking for two-dimensional set of points
The sum of the interior angles of a polygon is given by
180(n-2)
Where n is the number of sides of the polygon.
Sum = 180(14 - 2)
= 2160°
The answer is C
Hello :
<span> -7x-6y=59...(1)
-8x-6y=58...(2)
(1)-(2) : x = 1
subsct in (1)
-7-6y = 59
6y =-66
y = -11
</span>
Just substitute any number for one variable to find the value of the other.
Eg:
2x-y=11
2(1)-y=11
2-y=11
-2 -2
-y=9
-y/-1=9/-1
y=-9
So (1,-9) is a solution to the equation.
Follow the steps and find many more solutions.
Hope I help you.
Ac=4db is the correct statement
