Answer:
240 cubic meters
Explanation:
A rectangular prism is a 3d shape that is essentially a box. The volume (how much space inside) is given by:
V = length×width×height
So we can fill in and calculate.
V = 6 × 5 × 8
(this is all multiplication, so the order doesn't matter 5×6×8 or 6×5×8 or 5×8×6 or 8×5×6)
Volume = 240
The volume is 240 cubic meters.