The total surface area of solid = surface area of cube + CSA of hemisphere – Area of base of hemisphere
The figure is combination of hemisphere and cone.
In each set there are \\(15\\) cubes,
there are \\(4\\) such sets. Therefore \\(15\\times4=60\\).
In the middle there are \\(6\\) cubes horiziontally.
Hence, total number of cubes are \\(60+6\\).
the inner surface area of the vessel = CSA of the cylindrical part + CSA of hemispherical part
(2πrh+2πr2) cm2 = 2πr(h+r) cm2
the side of the cube = a = 3 cm
Also, the length and breadth of the resulting cuboid will be 3 cm each. While its height will be 6 cm.
So, the surface area of the cuboid = 2(lb+bh+lh)
What is the CSA of sphere?
Draw the structure and analyse.
Equate surface area of both the solid shapes and then find the radius.
Total surface area of the cylinder = 2πr(h+r)
Break figure vertically into 2 cuboids.
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