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Subject: Maths, asked on 11/2/18

The given figure shows a solid formed of a solid cube of side 40 cm and a solid cylinder of radius 20 cm and height 50 cm attached to the cube as shown.
Find the volume and the total surface area of the whole solid [Take π = 3.14]

Subject: Maths, asked on 28/10/17

The adjoining figure shows a cuboidal block of wood through which a circular cylindrical hole of the biggest size is drilled. Find the volume of wood left in the block 



 

Subject: Maths, asked on 21/7/18

Pls ans this

Subject: Maths, asked on 6/8/17

Q 14

Subject: Maths, asked on 8/12/18

Two identical solid cones each of base radius 3 cm with vertical height 5 cm and one more solid cine of base radius 2 cm with vertical height 4.5 cm are jointly melted and recasted into a solid sphere. Find : (i) the radius, (ii) the curved surface area of the sphere

Subject: Maths, asked on 15/10/18

The cross section of a railway tunnel is a rectangle 6m broad and 8m hish surmounted by a semicircle. The tunnel is 35 m long. Find the cost of plastering the internal surface of the tunnel (excluding the floor) at the rate of rupees 2.25 per m?.

Answer : rupees 2002.61 or rupees 2002.50

Please tell me how this answer came.

Subject: Maths, asked on 7/1/19

The area of sector shaped canvas cloth is 264 squre meter with this canvas cloth is if we make right a circular conical tent is arrected with the base radius of the 7 meter then find the height of the tent

Subject: Maths, asked on 14/2/19

Two identical solid cones each of base radius 3 cm with vertical height 5 cm and one more solid cone of base radius 2 cm with vertical height 4.5 cm are jointly melted into a solid sphere. Find(I) the radius,(ii) surface area of the sphere.

Subject: Maths, asked on 22/2/18

Surface area of solid sphere is 1256 CM square it is cut into two hemispheres find the total surface area and the volume of hemisphere

Subject: Maths, asked on 19/2/18

There is water up to a height of 14cm in a cylindrical glass jar of radius 8cm. Inside the water there is a sphere of diameter 12cm completely immersed. By what height will the water go down when the sphere is removed ?

Subject: Maths, asked on 26/10/17

how many cubes each of surface area 24 sq.m can be made out of a meter cube,without any wastage

Subject: Maths, asked on 18/2/18

(a) Find the area and the perimeter of the shaded region in figure (i) given below. The dimensions are in centimetres.
(b) In the figure (ii) given below, area of ∆ABC = 35 cm2, find the area of the shaded region.

Subject: Maths, asked on 9/2/18

Two equal cones are touching each other completely at the base circle. Given that the distance between the two vertices is 16cm and the diameter of the base circle is 12cm find the total surface area of the solid

Subject: Maths, asked on 11/2/18

Q. ABCD is a parallelogram, a line through A cuts DC at point P and BC produced at Q. Prove that triangle BCP is equal in area to triangle DPQ.

Subject: Maths, asked on 27/3/18

Plz solve 17 its urgent:

17. Its is required to make a plastering of sand and current with 3.5 cm. thick surrounding four cylindrical pillars, cash of whose diameter is 17.5 cm.
(i) If cach pillar is of 3 metre height, let us write by calculating how many cubic dem of plaster materials will be needed. 
(ii) If the ratio of sand and cement in the plaster material be 4.1, let us write how many cubic dcm of cement will be needed. 
 

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