The diameter of the base of a right circular cylinder is 4.2 dm and its height is
1 dm. Find the area of the curved surface in cm.
Answers
Answered by
39
hii frnd, here is Ur answer>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
diameter=4.2dm
radius will be=2.1dm in cm=2.1×10=21cm
height=1dm in cm=10cm
lateral surface area (CSA)=2πrh
=2×22/7×21×10
=44×30
=1320cm^2
hope this helps....
Answered by
6
Answer:
CSA=2πrh
d=4.2m
r=4.2÷2=2.1m.
2.1×100=210cm
CSA=2×22÷7×210×1=1320
CSA=1320cm
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