I can't see a square or a D given with your question.
But to find the perimeter you just have to add the surface of every side of the square.
The expression is equal to one. Because a number over the same number is equal to one. I think that is the answer.
Hope this helps!
Answer:
48
Step-by-step explanation:
V=1
/4h(^radical)-a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4
Subtract 9x from its side and move it over, -9x+y=7/3 should be your answer, hope i helped
