Answer:
A
Step-by-step explanation:
The diagonals of a parallelogram bisect each other. Hence, the two shorter sides created on diagonal RT ("6x-7" and "x+28" ) are equal.
We can set them equal and solve for x:
[tex]6x-7=x+28\\6x-x=28+7\\5x=35\\x=\frac{35}{5}\\x=7[/tex]
So the side length of 6x -7 is:
6(7)-7 = 35
and the side length of x + 28 is:
7 + 28 = 35
THus, the diagonal RT = 35 + 35 = 70 units
Answer choice A is right.
