Question

a solid cone is 25 cm high at the radius of its base is 50 cm It is a method recast into a solid sphere determine the surface area of sphere​

Answer 1

Answer:

7850 cm²

Step-by-step explanation:

volume of cone =1/3Πr²h

=1/3×3.14.50×50×25

=1/3×3.14×62500

= 1/3×196250

=65416.667 cm³

volume of sphere = volume of cone

4/3Πr³=65416.667

3.14×r³=65416.667 × 3/4

r³= 49062.5/3.14

r³=15625

r³=25³(by cube ,cube is cancel)

r=25cm

surface area of sphere =4Πr²

=4×3.14×25×25

=12.56×625

=7850 cm²