Apolygon 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

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.

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step-by-step explanation: