NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes

Two cubes each of volume 64 cm3 are joined sdj to end. Find the surface area of the resulting cuboid. A vessel is in the form ncedt a hollow hemisphere mounted by a hollow cylinder. The diameter of the hemisphere is 14 cm and the total height of the vessel is 13 cm.

Find the inner surface area of the vessel. A toy is in the form of a cone of radius 3. The total height of the toy is Find the total surface area solhtions the toy. A cubical block of side 7 cm is surmounted by a hemisphere. What is the greatest diameter 10th ncert surface area and volume solutions sdn hemisphere can have? Find the surface area of the solid. A hemispherical depression is cut out from one face of a cubical wooden block such that the diameter l of the hemisphere is equal to the edge of the cube.

Determine the surface area of the remaining golume. A medicine capsule is in the shape of a cylinder with two hemispheres stuck to each of its ends see Fig.

The length of the entire capsule is 14 mm and the diameter of the capsule is 5 mm. Find its surface area. Solutons tent is in the shape of a cylinder surmounted by a conical top. If the height and diameter of the cylindrical part are 2. Also, find the cost of the canvas of the tent surfave the rate of Rs. Note that the base of the will not be covered with canvas. For cylindrical part: Q.

From a solid cylinder whose height is 2. Find the total surface area of the remaining solid to the nearest cm 2. A wooden article was made by scooping out a hemisphere from each end of a solid cylinder, as show in Fig. If the height of the cylinder is 10 cm, and its base is of radius 3. A solid is in the shape of a cone voolume on a hemisphere with both their radii being equal to 1 cm and the height of the cone is equal to its radius.

Rachel, an engineering student, was asked to make a model shaped like a cylinder with two cones attached at its two ends by using a 10th ncert surface area and volume solutions sdn aluminium sheet. Solitions diameter of the model is 3 cm and its length is 12 cm.

If each cone has a height of 2 cm, find the volume of air contained in the model that Rachel. Assume 10th Ncert Surface Area And Volume Solutions Group the outer and inner dimensions of the model to be nearly the. Find approximately how much syrup would be found in 45 gulabl jamuns, each shaped like a cylinder with two hemispherical ends with length 5 cm and diameter 2. Since, a gulab jamun is like a cylinder with hemispherical ends. A pen stand made of wood is in the shape of 10tth cuboid with four conical depressions to hold 10th ncert surface area and volume solutions sdn. The dimensions of the cuboid are 15 cm by 10 cm solutkons 3.

The radius of each of the depressions is 0. Find the volume of wood in the entire stand see Fig. Dimensions of soljtions cuboid are 15 cm, 10 cm and 3.

A vessel is in the form of an inverted cone. It is filled with water up to the brim. When lead shots, each voljme which 10th ncert surface area and volume solutions sdn a sphere of radius 0. Find the number of lead shots dropped in the solutoons.

A solid iron pole consists of a cylinder of height cm and base diameter 24 cm, which is surmounted by another cylinder of height 60 cm and radius 8 cm. Find the mass of the pole, given that 1 cm 3 of iron has approximately 8 10gh mass. A solid consisting of a right circular cone of height cm and radius 60 cm afea on a hemisphere of radius 60 cm is placed upright in a right circular cylinder full of water such that it touches the.

Find the volume of arda left in the cylinder, if the radius of the cylinder is 60 cn and its height is cm. A spherical areaa vessel has a cylindrical neck 8 cm long, 2 cm in soluttions the diameter of oslutions spherical part is 8.

By measuring the amount of water it holds, a child finds its volume to be cm 10th ncert surface area and volume solutions sdn. Exercise A metallie sphere of radius 4. Find the height of the cylinder. Metallic spheres of radii 6 cm, 8 cm and 10 cm, respectively, are melted to form a single solid sphere. Find the radius of the resulting sphere.

A 20 m deep well with diameter 7 m xolutions dug and the solutoins from digging is evenly spread out to form a platform 22 m by 14 m. Find the height of the platform. A well of diamter 3 m is dug 14 m deep. The earth taken out of it has been spread evenly all around it in shape of a circular ring of width 4 m to form an embankment.

Find the height of the embankment. A container shaped like a right circular cylinder having diameter 12 cm and height 15 cm is full of ice cream. The ice cream is to 10th ncert surface area and volume solutions sdn filled into cones of height 12 cm and diameter 6 cm, having a hemispherical shape on the top.

Find the number of such cones which an be filled with ice cream. For the circular cylinder: Q. How many silver coins, 1. For a circular coin: Q. A cylindrical bucket, 32 cm high and with radius of base 18 cm, is filled with sand. This bucket is emptied on the ground and a conical heap of sand is formed.

If the height of the conical heap is 24 cm, find the radius and slant height of the heap. Water in a canal, 6 m wide and 1. How much area will it irrigate in 30 minutes, if 8 cm of standing water is needed? A farmer connects a pipe of internal diameter 20 cm from a canal into a cylindrical tank in her field, solutjons is 10 m in diameter and 2 m deep.

A drinking glass is in the shape of a frustum of a 10th ncert surface area and volume solutions sdn of height 14 cm. The diameters of 10th ncert surface area and volume solutions sdn two circular ends are 4 cm and 2 cm. Find the capacity of the glass. The slant height of a frustum of a cone is 4 cm and the perimeters circumference of its circular ends are 18 cm and 6 cm. Find the surface area of the frustum.

A fez, the cap used by the Turks, is shaped like the frustum of a cone see Fig. If its radius on the open side is 10 cm, radius at the upper base is 4 cm and its slant height is ncett cm, find the area of material used for making it. A container, opened from the top and made up of a metal sheet, is in the form of a frustum of a cone of height 16 cm with radii of its lower and upper ends as 8 cm and 20 cm, respectively.

Find the cost of the milk which can completely fill the container, at the rate of Rs. Also find the cost of metal sheet used to make the container, if it costs Rs.

If the frustum so obtained be drawn into a wire of diameter find the length of the ncret. A copper wire, 3 mm in diameter, is wound about a cylinder whose solutipns is 12 cm, and diameter 10 cm, so as so,utions cover the curved surface of the cylinder.

Find the length and mass of the wire, assuming the density of copper to be 8. A right triangle, whose sides are 3 cm and 4 cm other than hypotenuse is solutlons to revolve about its hypotenuse. Find the volume and surface area of the double cone so formed.

Porous bricks are placed in the water until the cistern is full to the brim. Each brick absorbs one-seventeenth of its own volume of water. How many bricks can be put in without ocerflowing the water, each being In one fortnight of a given month, there was a rainfall of 10 cm in a river valley.

If the area of the valley is km 2show that the total rainfall was approximately equivalent to the addition to the normal water of three rivers each km long, 10th ncert surface area and volume solutions sdn m wide and 3 m deep.

An oil funnel made of tin sheet consists of a 10 cm long cylindrical portion attached to a frustum of a cone. If the total height is 22 cm, diameter of the cylindrical portion is 8 cm and the diameter of the top of the funnel is 18 10th ncert surface area and volume solutions sdn, find the area of the tin sheet required to make the funnel see Fig. Derive the formula for the curved surface area and total surface area of the frustum of a ad, given to you in Section Derive the formula for the volume of the frustum of a cone, given to you sufrace Section Toggle navigation.

Surface area of wdn conical. Surface area of the hemispherical. Since, the child finds the volume as cm 3. Now this earth is spread out to form a cuboial platform having.

Thus, the required height of the platform is 2.


By measuring the amount of water it holds, a child finds its volume to be. How many exercises in Chapter 13 Surface Areas and Volumes There are total 5 exercise in the Chapter 13 Surface Areas and Volumes which will make students while solving any questions. You had learned the formulas for finding the surface area and volumes of these solids earlier. Let the height of the cone OAB be h 1 and its slant height be l 1. A farmer connects a pipe of internal diameter 20 cm from a canal into a cylindrical tank in her field, which is 10 m in diameter and 2 m deep.


Make point:

Certainwe could finish up spending many of your time you do the accumulation of guesswork as well as attempting to figure things out by your self.

As an probabilitythough it seems earnest. Constructing reserve were even donated by the operation of corporations.




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