Calculate the surface area of a cylindrical drum of radius 21cm, height 50cm open at the top.
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Answered by
20
radius 21cm
height 50cm
surface area equal to curved surface area of cylinder+area of bottom
2 pie rh+pie r square
7986 square cm ans
height 50cm
surface area equal to curved surface area of cylinder+area of bottom
2 pie rh+pie r square
7986 square cm ans
as4267534:
wrong answer
Answered by
12
Surface area = 2πrh
=2×22/7×21 ×50
=44×150
=6600
=2×22/7×21 ×50
=44×150
=6600
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