Answer:
Volume of the shape = 1,190 in.³
Step-by-step explanation:
The volume of the shape = volume of the rectangular prism - volume of the right triangle prism
= L*W*H - ½*b*h*l
Where,
L = 20 in.
W = 8 in.
H = 8 in.
b = 3 in.
h = 3 in.
l = 20 in.
Plug in the values
Volume of the shape = 20*8*8 - ½*3*3*20
= 1,280 - 90
= 1,190 in.³