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All cubes are prisms....

All cubes are prisms.

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Three solid cubes have a face diagonal of 4sqrt(2) cm each. Three other solid cubes have a face diagonal of 8sqrt(2) cm each. All the cubes are melted together to form a cube. Find the side of the cube formed in cm).

A cube is a three-dimensional figure as shown in Fig 11.11 .It has six faces and all of them are identical squares.The length of an edge of the cube is given by 1. Find the formula for the total length of the edges of a cube.

A cube is a three-dimensional figure as shown in the given figure. It has six faces and all of them are identical squares. The length of an edge of the cube is given by 1. Find the formula for the total length of the edges of a cube.

NCERT EXEMPLAR-VISUALISING SOLID SHAPES -EXERCISE
  1. The given shape is a cylinder.

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  2. A cuboid has atleast 4 diagonals. (True/False)

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  3. All cubes are prisms.

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  4. A cylinder is a 3-D shape having two circular faces of different radii...

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  5. On the basis of the given figure, the length of a rectangle in the net...

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  6. If a length of 100 m is represented on a map by 1 cm, then the actual ...

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  7. The model of a ship shown is of height 3.5 cm. The actual height of th...

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  8. The actual width of a store room is 280 cm. If the scale chosen to mak...

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  9. How many faces does each of the following solids, have? Tetrahedro...

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  10. Draw a prism with its base as regular hexagon with one of its face fac...

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  11. How many vertices does each of the following solids have? (a) cone ...

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  12. How many edges does each of following solids have? (a) Cone (b) Cy...

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  13. Using Euler’s formula, find the value of unknown x, y, z, p, q, r, in ...

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  14. Can a polyhedron have V = F = 9 and E = 16 ? If yes, draw its figure

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  15. Check whether a polyhedron can have V = 12, E = 6 and F = 8.

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  16. A polyhedron has 60 edges and 40 vertices. Find the number of its face...

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  17. A polyhedron has 20 faces and 12 vertices. Find the edges of the polyh...

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  18. A solid has forty faces and, sixty edges. Find the number of vertices ...

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  19. Draw the net of a regular hexahedron with side 3 cm. (Hint: Regular he...

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  20. Draw the net of a regular tetrahedron with side 6 cm.

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