The easiest way to solve this, is to dive the figure in two rectangular prism. One with dimensions 7in x 8in x 1in and another one with dimensions 10in x 9in x 1in
Then we calculate the volume of the two rectangular prisms by multiplying their dimensions:
[tex]V_1=7in\cdot8in\cdot1in=56in^3[/tex][tex]V_2=10in\cdot9in\cdot1in=90in^3[/tex]Now we add the two volumes:
[tex]V_{total}=V_1+V_2=56in^3+90in^3=146in^3[/tex]Then the volume of the figure is 146 cubic inches.
