The area of the floor of a class room is 10 m2 that of a longer wall 15 m2 and of the shorter wall 6 m2, find the edge of the new cube?
Options.
A) 50 m3	B) 30 m2	C) 60 m3	D) 40 m3	E) 900 m3
lb = 10 ; lh = 15 ; fh = 6   (lbh)2 = 10 * 15 * 6 =&gt; lbh = 30 m3   ANSWER:30 m2
<result>B</result>
The area of the floor of a class room is 10 m2 that of a longer wall 15 m2 and of the shorter wall 6 m2, find the edge of the new cube?