1.

if a right circular cone of height 24cm has volume 1232 cm³ then the area of the curve surface is what?

Answer»

Solution:

VOLUME of CYLINDER= pi R^2*h

=> pi* r^2*24= 1232

=> pi*r^2= 51.3

=> r^2= 51.3 /3.14 (pi= 3.14)

=> r^2= 16.3

=> r ≈ 4 cm

Now, CURVED surface area of cylinder= 2*pi*r*h

= 2*pi*4*24

= pi*192

= 3.14*192

= 602.8 cm^2

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hope it helps

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