Find the total surface area of cylindrical drum if it's diameter is 50cm and height is 45 CM pie=22 upon 7

Answers (1)

Diameter (d) = 50 cm  => r= 25 cm

Height (h) = 45 cm

Total surface area =2πr (r+h)

                             = 2 x 22/7 x 25 (25 +45)

                            = 44/7 x 25 x 70

                            = 11000 cm2

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