Mathematics
A solid sphere with a radius of 4 cm is cut into 4 identical pieces by two mutually perpendicular planes passing through its center. Find the total surface area of one-quarter piece.
24π
32π
48π
64π
Related Questions
A cylindrical metallic wire is stretched to double its length. Which of the following will NOT change for the wire after stretching?
Its curved surface area
Its total surface area
Its volume
Its radius
Two identical solid hemispheres are kept in contact to form a sphere. The ratio of the total surface areas of two hemispheres to the surface area of the sphere formed is :
1 : 1
3 : 2
2 : 3
2 : 1
cosec2 θ + sec2 θ is equal to :
tan2 θ + cot2 θ
cot θ + tan θ
(cot θ + tan θ)2
1