Thediameter of a right circular cone is 14 cm and its slant height is 12 cm find its curved surface area total surface area and volume
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Step-by-step explanation:
diameter=14
radius=diameter/2=7
l=12
curved surface area=pi*r*l
l=sqrt(r^2+h^2)
l^2-r^2=h^2
144-49=h^2
h=sqrt(95)
CSA=pi*7*12
=22/7*7*12=22*12=264
TSA=pi*r(r+l)
=(22/7)(7)(12+9)
=22*(21)=462
volume=(1/3)pir^2h
=(1/3)*(22/7)*(49)*sqrt(95)=22*7/3)*sqrt(95)
=154*sqrt(95)/3
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