The area of the floor of a room is 20 m2 that of a longer wall 15 m2 and of the shorter wall 12 m2, find the edge of the new cube?	Choose one:
A) 33 m3
B) 77 m3
C) 60 m3
D) 27 m3
E) 29 m3
lb = 20 ; lh = 15 ; fh = 12   (lbh)2 = 20 * 15 * 12 =&gt; lbh = 60 m3   Answer:60 m3
<result>C</result>
The area of the floor of a room is 20 m2 that of a longer wall 15 m2 and of the shorter wall 12 m2, find the edge of the new cube?