Answer:
Solid: Triangular prism
Volume: 108 cm³
Step-by-step explanation:
Volume, V = A x L
Where A = area of one face of the prism
L = length of the prism = 12 cm
Note A = 1/2bh, b = 6 cm, h = 3 cm
A = 1/2 x 6 x 3
A = 1/2 x 18
A = 9 cm²
∴ V = 9 cm² x 12 cm
V = 108 cm³
Hence, the solid is a triangular prism and the voulme is 108 cm³