Calculate the area of the rhombus: d= 11.5 a=8.8

K = 76.6089 m²

Step-by-step explanation:

A = C = 81.5983 °

B = D = 98.4017 °

a = 8.8 m

p = 11.5 m

q = 13.3233 m

h = 8.70556 m

P = 35.2 m

K = 76.6089 m^2

a = side lengths

p and q diagonal lengths

h = height

A, B, C, D = corner angles

K = area

P = perimeter

π = pi = 3.14159

√ = square root

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'.