The length of the longest stick that can be fitted in a cubical vessel having an edge of length 20 cm, is _______.
Answer & explanation
Correct answer: option 4
We know that,
Diagonal of cube = \(\sqrt {3}\) × Side of cube
We have,
Side = 20
The length of the longest stick that can be fitted in a cubical vessel is equal to the length of the diagonal of the cube.
The length of the diagonal of the cubical vessel = \(\sqrt {3}\) × 20 = 20\(\sqrt {3}\)cm