Known :
Rectangular 1 :
l1 = 12 in
w1 = 6 in
h1 = 12 in
Rectangular 2 :
l2 = 18 in
w2 = 8 in
h2 = 10 in
Asked :
Volume = ...?
Answer :
V = V rectangular 1 + V rectangular 2
= (l1 × w1 × h1) + (l2 × w2 × h2)
= (12 × 6 × 12) + (18 × 8 × 10)
= 864 + 1.440
= 2.034 in³
So, the volume of the figure is 2.034 cubic inches.
Hope it helpful and useful :)