Answer:
i believe the answer is 162 cubic inches
Step-by-step explanation:
as we know, the rectangles are conjoined but the easiest way to solve this is to separate them (so to speak) with that, let us pretend that we've cut them making two individual rectangles-
so rectangle one's dimensions are-
1, 8,9 (remember that the order the numbers are in is unimportant because the answer will still be the same no matter the order)
and rectangle two's dimensions are-
2,5,9
the formula for the volume of a rectangular prism is v=wlh
now we just need to plug in the information
rectangle one- v=1*8*9=72
rectangle two=2*9*5=90
now let us suppose we've re-conjoined the rectangular prisms-
(meaning we're going to add up the volumes for the total volume of the shape given in your problem)
72+90=162 cubic inches
good luck :)
i hope this helps
**please let me know if this was wrong**
