Q. 75.0( 3 Votes )

If the radius of a cone is 60 cm and its curved surface area is 23.55 m2, then find its slant height. (π = 3.14)

Answer :

Given.


The radius of a cone is 60 cm


Curved surface area is 23.55 m2


Formula used/Theory.


CSA of cone = πrl


Radius is in cm but area is given in m2


Then convert radius into m


Radius = m = 0.6m


23.55 m2 = 3.14 × 0.6 × l


L × 1.884 m = 23.55 m2


L = = 12.5 m


The slant height of cone is 12.5 m


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