Question

A metal cube with an edge of one foot is melted into a rectangular solid one-eighth of a foot in height. What is the area of the top of the new solid?

a. 1/64 sq.ft
b. 1/8 sq.ft
c. 1/4 sq.ft
d. 4 sq.ft
e. 8 sq.ft

please answer and explain

Answer 1

since v=1 and Bh=v
(1/8)B = 1
B = 8