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How many faces does each of the followin...

How many faces does each of the following solids, have?
Tetrahedron
Hexahedron
Octagonal Pyramid
Octahedron

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NCERT EXEMPLAR-VISUALISING SOLID SHAPES -EXERCISE
  1. The model of a ship shown is of height 3.5 cm. The actual height of th...

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

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

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

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

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

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

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

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

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

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

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

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

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

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  15. Draw the net of the following cuboid:

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  16. Match the following:

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  17. Complete the table given below by putting tick mark across the respect...

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  18. Draw the net of the following shape.

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  19. Draw the net of the following solid.

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  20. Find the number of cubes in the base layer of the following figure.

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