What is the volume of the doorstop below?
A rectangular prism and triangular prism. The rectangular prism has a length of 2 inches, width of 6 inches, and height of 3 inches. The triangular prism has a triangular base with a base of 3 inches and height of 3 inches. The height of the prism is 6 inches.
a
36 in3
b
63 in3
c
90 in3
d
27 in3