Mensuration 3D
171 CDS Mathematics previous year questions (PYQs) from 21 papers, 2016 to 2026, with answers and worked solutions.
About this chapter
- Difficulty: 27 easy · 115 moderate · 29 hard.
- Most-asked subtopics: Frustums and Combined Solids (22), Cubes and Cuboids (20), Scaling and Comparing Solids (19).
- Updated 20 September 2026.
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- Set · 2 questionsThe sides of an open box are 0.5 cm thick and bottom is 1 cm thick. The internal length, breadth and depth are respectively 14 cm, 10 cm and 8 cm. It is completely filled with water.
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#21Diagonals and Cuboid Identities
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- Set · 2 questionsConsider the following for the next two (02) items : The sum of length, breadth and height of a cuboid is 22 cm and the length of its diagonal is 14 cm.
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- Set · 2 questionsA hall is of length , breadth b and height h. The maximum distance between any two points (say P and Q) inside the hall is 14 m, whereas the maximum distance between two points (say P and R) on the floor is m.
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Showing the first 50 of 171.
See all 171 questionsMore chapters in this subject
- Algebraic Identities and Simplification98
- Averages47
- Circles69
- Data Interpretation52
- Heights and Distances41
- Linear Equations40
- Lines, Angles and Polygons22
- Logarithms33
- Mensuration 2D197
- Number System223
- Percentage, Profit and Loss50
- Polynomials79
- Quadratic Equations89
- Quadrilaterals54
- Ratio, Proportion and Variation76
- Sequence and Series19
- Sets28
- Simple and Compound Interest34
- Statistics80
- Surds, Indices and Simplification82
- Time and Work46
- Time, Speed and Distance75
- Triangles151
- Trigonometric Ratios and Identities227