Mathematics
If the number of square centimeters on the surface of a sphere is equal to the number of cubic centimeters in its volume, what is the diameter of the sphere ?
Related Questions
How many balls each of radius 1 cm can be made by melting a bigger ball whose diameter is 8 cm.
The volume of one sphere is 27 times that of another sphere. Calculate the ratio of their:
(i) radii
(ii) surface areas
The internal and external diameters of a hollow hemispherical vessel are 21 cm and 28 cm respectively. Find :
(i) internal curved surface area,
(ii) external curved surface area,
(iii) total surface area,
(iv) volume of material of the vessel.