Can anyone help I’ve been on this question for almost an hour :(

The answer is 15 ft.

Step-by-step explanation:

since the trapezoids are similar, they have a scale factor of 3 because 4.5 divided by 3 is 1.5, so 5 x 3 is 15 ft.

I think the legnth is 15 ft

Step-by-step explanation:

If you measure the bottom side of the trapezoid ABCD it tells you that it is 7 feet and the sides of GHIJ are 4.5 feet and you need to go around the trapezoid.

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'.

it would open into a square depending on the type of envelope i’m not sure about the second part