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In a blueprint of a room, an architect has shown the height of the room as 33 cm. If the actual height of the room is 330 cm, then the scale used by her is

A

`1:11`

B

`1:10`

C

`1:100`

D

`1:3`

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NCERT EXEMPLAR-VISUALISING SOLID SHAPES -EXERCISE
  1. Which of the following shapes has a vertex.

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  2. Which of the following cannot be true for a polyhedron?

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  3. In a blueprint of a room, an architect has shown the height of the roo...

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  4. The following is the map of a town. Based on it answer question 19-21....

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  5. The ratio of the number of general stores and that of the ground is

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  6. According to the map, the number of schools in the town is

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  7. Square prism is also called a .

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  8. Rectangular prism is also called a .

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  9. In the figure the number of faces meeting at B is .

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  10. A pyramid on an n sided polygon has faces.

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  11. If a solid shape has 12 faces and 20 vertices, then the number of edge...

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  12. The given net can be folded to make a .

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  13. A solid figure with only 1 vertex is a .

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  14. Total number of faces in a pyramid which has eight edges is.

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  15. The net of a rectangular prism has rectangles.

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  16. In a three-dimensional shape, diagonal is a line segment that joins tw...

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  17. If 4 km on a map is represented by 1 cm, then 16 km is represented by ...

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  18. If actual distance between two places A and B is 110 km and it is repr...

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  19. A pentagonal prism has faces

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  20. If a pyramid has a hexagonal base, then the number of vertices is .

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