Answer:
The total volume is 41.1 cubic meters.
Explanation:
Volume of the platform is:
1.8m * 1.8m * 10m = 32.4 m^3
Volume of the ramp is half of a prism with same dimensions as that ramp:
0.5 * 6m * 1.8m * 1.8m = 9.7 m^3
Total: (32.4 + 9.7) m^3 = 41.1m^3