Answer:
V ≈ 7.4 m³
Step-by-step explanation:
The volume (V) of a triangular prism is calculated as
V = Al ( A is the area of the triangular face, l is the length of the prism )
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )
here b = 2.6 and h = 1.9
A = [tex]\frac{1}{2}[/tex] × 2.6 × 1.9 = 1.3 × 1.9 = 2.47 m²
The length l of the prism is 3 m , then
V = 2.47 × 3 ≈ 7.4 m³ ( to 1 decimal place )