Find x and the measure of each angle

x = 20

The angles are 40 and 140

Step-by-step explanation:

Since the angles are supplementary , it means they add up to be 180 , that is

2x + 8x - 20 = 180

10x - 20 = 180

10x = 180 + 20

10x = 200

x = 20

the first angle which is 2x will be 2(20) = 40 , and the second angle which is 8x - 20 will be 8(20) - 20 = 140

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'.

step-by-step explanation: