A polygon is regular if each of its sides has the same length. find the perimeter of the regular polygon. the perimeter of the polygon is units.

Triangle with side Equaling:-

Side 1 = 5-2x

Side 2 = - 4x+9

Since the three sides have the same length that length is

5-2x = - 4x+9

So, we solve for x, and then find 5-2x, the length of each side.

5-2x=-4x=9

5-2x = - 4x+9

5-2x=4x-5 = - 4x+9+4x-5

4x-2x=9-5

2x=4

X=2

5-2x=5-2.2

5-2x=5-4

5-2x=1 is the length of each one of the three sides of this regular triangle. So the perimeter 3.2=3