We know that volume of the cylinder = πr2h
Here r = 7cm h = 50cm
V = 22/7 × 7 × 7 × 50
V = 22 × 7 × 50
V = 7700 cm3
Also we know that curved surface area of cylinder = 2πrh
Curved surface area = 2 × 22/7 × 7 × 50
Curved surface area = 2200 cm2
We know that total surface area of cylinder = 2πr(r + h)
Total surface area = 2 × 22/7 × 7 (7 + 50)
Total surface area = 2580 cm2