- A1342
- B1207
- C2684
- D1477
Step-by-Step Solution
Cyl CSA = 2*π*. Bottom circle = π*. Hemisphere CSA = 2*π*. Total .
Answer: A) 1342
A cylindrical wooden block of radius 7 cm and height 20 cm is topped by a hemisphere of the same radius (a paper-weight). The visible (exposed) area to be polished is the cylinder's curved surface + cylinder's bottom + hemisphere's curved surface. Find it in . (Take π = ) (CSA = curved surface area, TSA = total surface area)
Class 10Surface Area of Combined 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 Surface Area of Combined Solids practice questions
More Class 10 Surface Area of Combined Solids practice
A circus tent is a cylinder of radius 7 m and height 4 m, surmounted by a cone of slant…A medicine capsule is 14 mm long overall and 5 mm in diameter (so r = 2.5 mm). The…A storage tank is a cylinder with a hemispherical dome on top, both of radius 1.4 m. The…Two solid cones of equal base radius 3 cm and slant height 5 cm are joined base to base…A solid is a cube of edge 7 cm with a hemisphere of radius 3.5 cm fixed (sitting) on the…