Question

a solid metallic cone is 27 high and radius of its base is 16 cm.if it is melted and recast into a solid sphere,find the curved surface area of the sphere.

Answer 1

height = 27 cm
radius = 16 cm
slant height = root mai lna hai ...height ka square + radius ka square ...
isse solve karna ha..
fir curved surface ka formula use krk answer a jye hai = pai × r( radius )× l( slant height ) isse solve kna hai ....c.s.a a Jye gaa

Answer 2

height of the come = 27 cm
Radius of its base = 16 cm
volume of cone = 1/3πr²h
= 1/3(3.14)(16)(16)(27)
= 7234.56cm³
therefore volume of sphere = 7234.56
4/3πr³ = 7234.56
r³ = 7234.56 (¾)(3.14)
r³ = 17937.39
r = 3√17937.39
= 401.7
csa of sphere = 4πr²
= 4 (3.14) (401.7)(401.7)
= 2026717.8984