The diameter of the base of a right circular culinder is 4.2 dm and its height is 1 dm.find the area of curved surface in cm square
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r=2.1dm=2.1*10cm =21cm
h=1dm= 1*10cm =10cm
so curved surface area= 2 (pi) rh=2*3.14*21*10 cm2 =1318.8 cm square
h=1dm= 1*10cm =10cm
so curved surface area= 2 (pi) rh=2*3.14*21*10 cm2 =1318.8 cm square
Adityasingh235:
but answer is showin 1320
chech again
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