V=3. 14×(6÷2)^2× 10
=282.6 square decimeter
=282.6 liters
282.6× 0.8 = 226.08kg.
2.56.52× 1.5 = 84.78 m2.
84.78× 5 = 423.9 square meters
3.= 9.009 cubic decimeter = 9.009 liters
= 9009 cubic decimeter
4.v=3. 14×( 18.84/2/3. 14)^2* 10
=3. 14 ×9× 10
= 282.6 cubic decimeter
This is a cube, not a square. V=0.9×0.9×0.9。
=0.729