Given,
Curved surface area = 1320 cm2
Diameter of base = 21 cm
Radius of base = \(\frac{diameter}{2}\) = \(\frac{21}{2}\) cm
So,
= 2πrh = 1320
= 2 x \(\frac{22}{7}\) x \(\frac{21}{2}\) x h = 1320
= h = \(\frac{1320\times 14}{2\times 22\times 21}\) = 20 cm
∴ Volume of cylinder = πr2h = \(\frac{22}{7}\)x \(\frac{21}{2}\) x \(\frac{21}{2}\)x 20 = 6930 cm3