Cylinder volume: 0.96? x3. 14x2=5.79dm? (Keep two decimal places)
If π≈3
Bottom diameter: 6÷3÷2= 1dm.
Cylinder volume: 3x 1? x2=6dm?
2. Because cutting into four sections will add four sides.
Steel bottom area = 18.84÷4=4.7 1cm?
5dm=50cm
Steel volume =4.7 1x50=235.5cm?
3. 2.5m = 25m
Surface area =3x3. 14x25+(3÷2)? x3. 14x2
=249.63dm?
=2.4963m?