Answer:
Option C.
Step-by-step explanation:
we know that
The volume of the solid Eva created is equal to the volume of the triangular prism minus the volume of the rectangular prism notch
step 1
<em>Find the volume of the triangular prism</em>
The volume is equal to
where
B is the area of the triangular base
h is the height of the triangular prism
substitute
step 2
Find the volume of the rectangular prism notch
The volume is equal to
step 3
Find the volume of the solid Eva created
i think it is 27 i did 5+4 then i did 9x3 and got 27