The radius and height of a cone are in ratio 4:3.The area of base is 154cm.Find its curved surface area.
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let the radius and height be 4x and 3x ..
area of the base pir^2 given 154
r is 7
4x is 7. ...x is 7/4
slant height is 5x tht is 35/4
csa of cone is pi(r) l. tht is 22/7 (7)(35/4)
192.5sq.cm
area of the base pir^2 given 154
r is 7
4x is 7. ...x is 7/4
slant height is 5x tht is 35/4
csa of cone is pi(r) l. tht is 22/7 (7)(35/4)
192.5sq.cm
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