find the total surface area of following cylinder radius is equal to 4.2 cm and height equal to 4.2cm
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πrh(h+r)
(where both radius and height are 4.2cm)
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Step-by-step explanation:
Area of curved surface= 2πrh
=2*22/7*4.2*90
=2376cm^2
Total surface area = 2πr(h+r)
=26.4(94.2)
=2486.88cm^2
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