Mensuration 3D
19 lessons · 35 questions · 10 PYQs
What the exams ask here
- sphere melted into beads
- % change in SA when side reduced
- cuboid from cubes joined
- height of room from wall areas
- whole tiles from a melted circular plate (Indore 2019 SA Q15)
- three integer cubes with total surface area 564 (Indore 2019 Q49)
- cones with radii 2:3 and volumes 1:3 (JIPMAT 2023 Q6); well dug, earth spread as a platform (JIPMAT 2023 Q23)
- open box from a sheet; sphere recast as a rod (JIPMAT 2025)
Lessons
- Start hereThe idea and the methodFirst lesson of Mensuration 3D
- 1.Cube cuboid SA volume4 questions + fresh variants
- 2.Cylinder cone sphere9 questions + fresh variantsJIPMAT 2023
- 3.Melting recasting4 questions + fresh variantsIndore 2019 SA
- 4.Surface area change percent1 question + fresh variants
- 5.Volume sums from surface1 question + fresh variantsIndore 2019
- 6.Earth dug platform1 question + fresh variantsJIPMAT 2023
- 7.Cubes joined cuboid2 questions + fresh variantsJIPMAT 2023
- 8.Room dimensions from areas1 question + fresh variantsRohtak 2019
- 9.Space diagonal2 questions + fresh variants
- 10.Cone cut parallel base1 question + fresh variants
- 11.Displacement water rise2 questions + fresh variants
- 12.Flow through pipeNew numbers every time (templates)
- 13.Open box from sheet1 question + fresh variantsJIPMAT 2025 (like)
- 14.Sector rolled into coneNew numbers every time (templates)
- 15.Painted cube counting1 question + fresh variants
- 16.Inscribed solids ratio2 questions + fresh variants
- 17.Hollow solids2 questions + fresh variants
- 18.Composite solids1 question + fresh variants