In a cylinder, each circle is 11cm in diameter and there is 20cm gap between them. What is the volume of the shape and the surface area?

Answer:
diameter (d) = 11 cm
radius (r) = d/2 = 11/2 = 5.5 cm
height (h) = 20
volume of cylinder (v) = pie × square of radius × height
= 22/7 × (5.5 ×5.5) × 20
=13310/7
= 1901.42 cm cube
surface area (LSA) = πdh
= 22/7×11×20
=4840/7
= 691.42 cm square
total surface area (TSA) = 2 ×AREA OF BACE + LSA
= 2π × square of radius + 691.42
= 2×22/7×(5.5×5.5) + 691.42
= 190.14+691.42
= 881.562 cm sq