Question

A drum has a diameter of 40 cm and a depth of 18 cm.Find the surface area of the drum.(full solution and right answer please)​

Answer 1

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$diameter = \: 40cm \\ radius \: = 20cm \\ height \: = \: 18cm \\ to \: find \: = \: surface \: of \:the \: area \\ area = \pi \: units \\ = 3.14 + 20 \times 20 \times 18 \\ = 22608cm$

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