Answer:
80in²
Explanation:
Area of a rectangular prism = Base area × Height
Let vA = be the volume of prism A
vB be the volume of prism B
vA = Base area of A× Ha
vB = Base area of B × Hb
If The volume of prism A is half the volume of prism B then vA = 1/2 VB
BaHa = (BbHb)/2
Given Base area of A = 40in² and Ha = Hb then we have:
40Ha = BbHa/2
40 = Bb/2
Bb = 2×40
Bb = 80in²
This shows that the base area of prism B is 80in²