Advertisements
Advertisements
प्रश्न
Find the volume of the hollow sphere whose inner diameter is 8 cm and the thickness of the material of which it is made is 1 cm .
Advertisements
उत्तर
Inner diameter = 8 cm
Inner radius = r = 4 cm
Outer radius = R = 4cm + 1cm thick material = 5 cm
Volume of hemisphere = `2/3pir^3`
Required Volume = `4/3pi(R^3 - r^3)`
= `4/3 xx 22/7 xx (5^3 - 4^3)`
= `4/3 xx 22/7 xx 61`
= 255.6 cm3
Required volume= 255.6 cm3
संबंधित प्रश्न
Find the radius of a sphere whose surface area is 154 cm2.
`["Assume "pi=22/7]`
Find the surface area of a sphere of radius 5.6 cm.
Find the surface area of a sphere of radius 14 cm.
Find the surface area of a sphere of diameter 14 cm.
Assuming the earth to be a sphere of radius 6370 km, how many square kilo metres is area
of the land, if three-fourth of the earth’s surface is covered by water?
A solid rectangular block of metal 49 cm by 44 cm by 18 cm is melted and formed into a solid sphere. Calculate the radius of the sphere.
Find the maximum volume of a cone that can be carved out of a solid hemisphere of radius r cm.
Find the total surface area of a hemisphere of radius 10 cm.
If a sphere is inscribed in a cube, then the ratio of the volume of the sphere to the volume of the cube is
The internal and external diameters of a hollow hemi-spherical vessel are 21 cm and 28 cm respectively. Find volume of material of the vessel.
