Answer: 4 cm and 11 cm.
Step-by-step explanation:
1. You can calculate the perimeter of a parallelogram as following:

Where a+b+c+d are the lenghts of the sides.
By definition the parallelogram has two pairs of parallel sides, therefore:
a=c and b=d
Then, you can calculate the perimeter as following:
2. Let's call the adjacent side
, then the other side is 2x+3.
3. Substitute values and solve for x:

4. Then the lenghts of the sides are:

Answer:
256√3 in^2.
Step-by-step explanation:
tan 60 = lateral height of 1 face / 8
Lateral height = 8 tan 60 = 8√3
Area of 1 face = 8 * 8√3 = 64√3
Lateral Area = 4 * 64√3 = 256√3 in^2
M = 30 + 10
m = 40
12 + 3(5+d) = 36
You would have a simple interest of 2 with a simp