Answer:
hcf = 8..................
We have [(3k)x(k-1)x(k+1)]/[3k^3x(k+1)] = (k-1)/k^2;
The area of the room would be 380.25 feet
78 / 4 = 19.5 (you do this to figure out how long each side of the room is)
19.5 * 19.5 = 380.25 feet (length times width equals area. Each side of the room is 19.5 feet so you would multiply 19.5 by 19.5)
<span>square root if 54 is 7.35</span>