Recent questions tagged surface areas

The dimensions of a cuboid are 50 cm x 40 cm x 10 cm. Its volume in litres is:?

asked Aug 27, 2015 by pady_1

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In a cylinder, radius is doubled and height is doubled, curved surface area will be?

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The height of a cone is 16 cm and Slant height is 20 cm. Its radius is ?

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The area of three adjacent faces of a cube is a, b and c. The volume is V .What is the appropiate relation between V and a,b,c?

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If four times the sum of the areas of two circular faces of a cylinder of height 8cm is equal to the twice the curved surface area then find the diameter of the cylinder.

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If each edge of a cube is increased by 50% then what is the percentage increase in the surface area of the cube?

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if the height of a cylinder is doubled, by what number must the radius of the base be multiplied so that the resulting cylinder has the same volume as the original cylinder?

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A solid cylinder is melted and cast into a cone of same radius .Find the ratio of their heights ?

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The external and internal diameters of a hollow hemi-spherical vessel are 16cm and 12cm respectively the cost of painting 1 sq. cm of surface is Rs.2 .find the cost of painting the vessel?

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The radii of two cylindre are in ratio 2:3 and the ratio of their height 5:3, Find the ratio of their volume.

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the lateral surface area of a cube is 256 m^2 , The volume of the cube

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In a cylinder radius is doubled and height is halved , curved surface area will be

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A cone of height 9 cm with diameter of its base 18 cm is carved out from a wooden solid sphere of radius 9 cm. The percentage of the wood wasted is

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12 spheres of the same size are made from melting a solid cylinder of 16 cm diameter and 2 cm height. Find the diameter of each sphere

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The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 12 cm each. The radius of the sphere is:

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A hollow spherical metallic ball has an external diameter 6 cm and is 1/2 cm thick. The volume of metal used in the metal is

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The volume of the largest right circular cone that can be cut out of a cube of edge 7 cm is

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The radii of two cones are in ratio 2:1, their volumes are equal. Find the ratio of their heights.

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The slant height of a conical mountain is 2.5 km and the area of its base is 1.54 km square. The height of mountain is :

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The maximum length of a pencil that can he kept is a rectangular box of dimensions 8 cm x 6 cm x 2 cm, is

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A metallic sheet is of rectangular shape with dimensions 48 m x 36 m. From each of its corners, a square is cut off so as to make an open box. If the length of the square is 8 m, the volume of the box (in m cube) is:

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If a right circular cone of height 24 cm has a volume of 1232 cm cube, then the area of its curved surface is

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The curved surface of a right circular cone of height 15 cm and base diameter 16 cm is:

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A hollow iron pipe is 21 cm long and its external diameter is 8 cm.If the thickness of the pipe is 1 cm and iron weights 8g/cm cube, then find the weight of the pipe.

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66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length if the wire in meters will be:

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A cylindrical tank of diameter 35 cm is full of water. If 11 litres of water is drawn off, the water level in the tank will drop by:

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Two right circular cylinders of equal volumes have their heights in the ratio 1:2. Find the ratio of their radii.

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A circular well with a diameter of 2 meters, is dug to a depth of 14 meters. What is the volume of the earth dug out.

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If the volume of two cubes are in the ratio 27:1, the ratio of their edges is

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How many cubes of 10 cm edge can be put in a cubical box of 1m edge.

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The cost of the paint is Rs. 36.50 per kg. If 1 kg of paint covers 16 square feet, how much will it cost to paint outside of a cube having 8 feet each side.

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The perimeter of one face of a cube is 20 cm. Its volume will be:

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A swimming pool 9 m wide and 12 m long is 1 m deep on the shallow side and 4 m deep on the deeper side. Its volume is

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How many bricks, each measuring 25cm11.25cm6cm, will be needed to build a wall 8m6m22.5m

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A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets into it. The mass of the man is :

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A cistern 6 m long and 4 m wide contains water up to a breadth of 1 m 25 cm. Find the total area of the wet surface

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Find the surface area of a 10cm4cm3cm brick

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How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 8 m x 6 m x 22.5 cm?

asked Aug 27, 2015 by pady_1

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A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube?

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What is the total surface area of a right circular cone of height 14 cm and base radius 7 cm?

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A cistern of capacity 8000 litres measures externally 3.3 m by 2.6 m by 1.1 m and its walls are 5 cm thick. The thickness of the bottom is:

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The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find the ratio of its diameter to its height

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A metallic sheet is of rectangular shape with dimensions 48 m x 36 m. From each of its corners, a square is cut off so as to make an open box. If the length of the square is 8 m, the volume of the box (in m3) is

asked Aug 27, 2015 by pady_1

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A cistern 6m long and 4 m wide contains water up to a depth of 1 m 25 cm. The total area of the wet surface is

asked Aug 27, 2015 by pady_1

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The slant height of a right circular cone is 10 m and its height is 8 m. Find the area of its curved surface.

asked Aug 27, 2015 by pady_1

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A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is:

asked Aug 27, 2015 by pady_1

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66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be

asked Aug 27, 2015 by pady_1

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A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:

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In a shower, 5 cm of rain falls. The volume of water that falls on 1.5 hectares of ground is:

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A right triangle with sides 3 cm, 4 cm and 5 cm is rotated the side of 3 cm to form a cone. The volume of the cone so formed is

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