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A cubical box is placed in a hemisphere, find a relation between radius of hemisphere and side of cube.
Given:
A cubical box is placed in a hemisphere.
To do:
We have to find the relation between the radius of the hemisphere and the side of the cube.
Solution:
Let the radius of the hemisphere be $r$ and the side of the cube be $s$.
The diagonal of the face of the cube $=$ Diameter of the hemisphere
Therefore,
$\sqrt{s^2+s^2}=2\times r$
$2\sqrt{s}=2r$
$\sqrt{s}=r$
$s=r^2$ (Squaring on both sides)
The relation between the radius of the hemisphere and the side of the cube is the side of the square is equal to the radius squared.
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