Stilts are cylindrical at base of diameter 70cm. Up to height of 1.2m mounted by cuboidal pieces 50cm x 50cm x 75 cm.

Stilts are cylindrical at base of diameter 70cm. Up to height of 1.2m mounted by cuboidal pieces 50cm x 50cm x 75 cm.

How many cubic meters of wood will be required to construct the stilts. ​