Answer
B=36.
Explanation
L.s.f=linear scale factor.
A.s.f=area scale factor.
L.s.f=length of prism 1/length of prism 2
L.s.f=3/8.
let area or prism 1=x
A.s.f=(L.s.f)^2
A.s.f=(3/8)^2
=9/64
9/64=x/256
x=(9×256)÷64
=36.
