alleryA toy is a cone fixed on a hemisphere. Its paintable surface equals what?
ACSA cone minus CSA hemisphere
BTSA cone + TSA hemisphere
CVolume of both added
DCSA cone + CSA hemisphere
Answer & Solution
Correct answer: D. CSA cone + CSA hemisphere
The joined flat faces are hidden, so only the two curved surfaces are painted and added.
Keep practising Geometry & Mensuration
Browse all Geometry & Mensuration questions for RRB NTPC, or explore more Quantitative Aptitude topics.
Related questions
In three dimensions, what formula gives the volume inside a sphere of radius r?Which algebraic expression calculates the total exterior area bounding a sphere of radius For a circular cylinder of base radius r and height h, which formula gives its volume?Which formula gives the curved side area of a right cylinder with radius r and height h?What geometric solid is generated by rotating a rectangle about one of its sides?What is the longest line segment that can be drawn between two points on a sphere?What metric area corresponds to one million square metres?How many square centimetres are contained in one square metre?