Surface Areas and Volumes
Jharkhand Board · Class 10 · Mathematics
Most important questions from Surface Areas and Volumes for Jharkhand Board Class 10 Mathematics board exam 2026. MCQs, short answer, and long answer questions with marks.
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When combining a hemisphere and a cone, what determines their smooth surface?
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Equal base radius
For a smooth surface when combining a hemisphere and cone, their base radii must be equal.
In surface area calculations of combined solids, do you add all surface areas directly?
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No, some surface areas disappear when joining
When combining solids, some surface areas are hidden or eliminated during joining, so you cannot simply add all surface areas.
What real-world example of a combined solid was mentioned in the chapter?
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Truck container with cylinder and hemispheres
The chapter specifically discussed a truck container made of a cylinder with two hemispheres as an example of combined solids.
What scientific object was mentioned as an example of a combined solid?
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Test tube
The chapter specifically mentioned a test tube as an example of a solid combining a cylinder and a hemisphere.
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