find the volume, curved surfes area and the total surfec area of a cone whose base redias 35cm and hight 12 cm.
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It is of cylinder the question is about cone
It is of cylinder the question is about cone
It is of cylinder the question is about cone
Answered by
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Answer:
CSA of cone=πrl
TSA of cone=πr(r+l)
Step-by-step explanation:
r=35cm
height=12cm
l^2=r^2+h^2
l^2=35^2+12^2
l=√1225+144
l=√1369
l=37cm
CSA of cone:
=22/7×35×37
=22×5×37
=4070cm
TSA of cone:
=22/7×35(35+37)
=22×5×72
=7920cm
volume of cone=1/3πr^2h
=1/3×22/7×35×35×12
=22×5×35×4
=15400cm^3
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