- A28.5
- B31.5
- C63
- D34.5
Step-by-Step Solution
Half cylinder *π* π = 1050 π. Cone: π*π* π => cm.
Answer: B) 31.5
Half of a solid metal cylinder of radius 10 cm and height 21 cm is melted and recast into a single solid cone of base radius 10 cm.
Find the height of the cone (in cm).
Class 10Conversion of SolidsMensuration
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Conversion of Solids practice questions
More Class 10 Conversion of Solids practice
A solid metallic sphere of radius 'r' is melted and drawn into a long cylindrical wire…When a solid is melted and recast into another shape, which quantity always stays the…A solid sphere of radius 1 cm is melted to form smaller spheres each of radius 1 cm. How…A cube of edge 4 cm is melted and recast into a cube of edge 'a'. What is 'a' (in cm)?A sphere of radius 4 cm is melted and drawn into a wire (cylinder). If the wire has…