alleryFor a solid hemisphere, curved area:total area equals?
A1:2
B1:3
C2:3
D3:4
Answer & Solution
Correct answer: C. 2:3
The curved half-sphere area is 2πr² and including its base gives 3πr².
Keep practising Mensuration: Surface Areas & Volumes
Browse all Mensuration: Surface Areas & Volumes questions for ICSE Class 10, or explore more Mathematics topics.
Related questions
A cylinder r=3,h=8 cm loses 1/9 volume on recasting into radius-2 cm balls. Number?A right cone has radius 5 cm and slant height 13 cm. Its vertical height?A sphere's surface area divided by volume is 1 cm⁻¹. Its radius?A cylinder has volume 1540 cm³ and curved area 440 cm². Its radius?What height gives a right cone of radius r the volume of a radius-r hemisphere?A cylinder's radius doubles while height halves. New volume:old volume?A cylinder's radius increases 20%; its height stays fixed. Volume increases by?No outflow: water rises 2 cm/min in a radius-7 cm cylinder. Inflow, π=22/7?