Question

A solid metallic sphere of radius 9cm is melted and recast into a solid right circ is the curved surface area (in cm2) of the cone?​

Answer 1

This is the correct answer

Answer 2

Answer:

4580.45 cm²

Step-by-step explanation:

vol . of cone =(4/3*Pi *r³) = 972pi cm³

volume of right circular cone (2cm)= (Pi*r^2*h/3)=vol. of sphere

This implies , h= 729 cm

slant height of cone = √((729)²+(2)²). {Pythagoras theorem}

curved surface area of cone =PI*r*slant height=4580.45 cm²