The height of a cone is 16 cm and its base radius is 12 cm. Find: (i) the curved surface area, (ii) total surface area of the cone. [use = 3.14]
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Answered by
12
height=16
radius=12
curved surface area of cone =πrl
l=√16^2+12^2
l=√400
l=20
3.14×12*20=753.6
total surface area of cone=πrl+πr^2
πr(l+r)
3.14*12(20+12)
3.14×12*(32)
3.14×12×32=1205.76 here ur answer plz comment below
radius=12
curved surface area of cone =πrl
l=√16^2+12^2
l=√400
l=20
3.14×12*20=753.6
total surface area of cone=πrl+πr^2
πr(l+r)
3.14*12(20+12)
3.14×12*(32)
3.14×12×32=1205.76 here ur answer plz comment below
Answered by
4
Answer:
753.6,1205.76
Step-by-step explanation:
height=16
radius=12
curved surface area of cone =πrl
l=√16^2+12^2
l=√400
l=20
3.14×12*20=753.6
total surface area of cone=πrl+πr^2
πr(l+r)
3.14*12(20+12)
3.14×12*(32)
3.14×12×32=1205.76
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