Surface Area of a Sphere

A sphere is inscribed in a cubical box such that the sphere is tangent to all six faces of the box. What is the ratio of the volume of the cubical box to the volume of sphere?

The area of sheet required to cover a hemispherical bowl of radius $20 \mathrm{cm}$ is:

Find the surface area of torus shape which has inner radius equal to $5 \mathrm{mm}$ and outer radius equal to $10 \mathrm{mm}$?

Find the surface area of a hemisphere whose radius is $4 \mathrm{cm}$?

Find the total surface area of a hemisphere whose radius is $4 \mathrm{cm}$?

Find the curved surface area of a hemisphere whose radius is $4 \mathrm{cm}$?

Determine the surface area of a sphere having a radius of $7 \mathrm{cm}$.

What is the surface area of torus shape which has inner radius equal to $5 \mathrm{mm}$ and outer radius equal to $10 \mathrm{mm}$?

Radii of two solid hemispheres are in the ratio $3:5$. Find the ratio of their lateral surface areas.

The radius of hemisphere is ___  whose total surface area is $4158 {\mathrm{cm}}^2$.

The internal and external diameters of a hollow hemispherical vessel are $24 cm \text{and} 25 cm$ respectively. The cost of painting $1 c{m}^2$ of the surface is $₹0.05$. Find the total cost of painting the vessel all over.

A sphere is inscribed in a right cylinder such that the height of the cylinder is equal to the diameter of the sphere. Also the diameter of the base of the right cylinder is equal to the diameter of the sphere as shown in the figure. Read the following statements and choose the correct option :

Statement (a) : Ratio of the total surface area of the right cylinder to that of total surface area of the sphere is $3:2$

Statement (b) : Ratio of the volume of the right cylinder to that of the volume of the sphere is $3:2$

A solid sphere cut into two equal hemisphere. What will be the ratio of surface area of the hemisphere to that of sphere?

Identify the hemisphere.

Circumference of the intersection of a sphere with a plane is $16\pi$ cm and this plane is $4$cm away from the center of the sphere. Find the surface area of the sphere.

The surface area of the two solid spheres balls are in the ratio $1:2$. The ratio of their volume is

A solid sphere of radius$r$ is sliced by two planes passing through its centre and perpendicular to each other. The total surface area of of each of the pieces so formed is
 

A sphere and a cube have the same surface area, what is the ratio of their respective volumes?

Find the total surface area of hemisphere as per information in the diagram. If A, B, C are collinear when A, B are the centre of planar surfaces of cylinder and C is centre of hemisphere.

How many surface does a hemisphere have?