Question

The height of a circular cylinder is 20 cm and
the diameter of its base is 14 cm. Find :
(i) its volume
(ii) its total surface area​

Answer 1

Height = 20cm

diameter = 14cm

radius = 14/2 = 7cm

volume of cylinder = ¥r²h

=22/7*7*7*20

=3080cm³

T.S.A = 2¥r(r+h)

= 2*22/7*7(7+20)

= 44*27

= 1188cm²

Answer 2

Step-by-step explanation:

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