Here is a set of free short videos for stepwise preparation of Solids and Mensuration on GMAT.
How to Find “Curved Surface” Area of Any Solid
Legacy GMAT Notice: Legacy GMAT archive entry (Classic Edition, pre-2024). Geometry is no longer examined. Kept for reference. For current goals, choose our Start-to-End GMAT Prep Course and use GMAT Diagnostics.
How to Find “Total Surface” Area of Any Solid
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How to Find the “Volume” of Any Solid
Properties of Sphere and Hemisphere
An Important Concept on Solids