Question

Inner part of a cupboard is in the cuboidal shape with its length breadth and height in ratio 1:√2:1 . What is the angle made by longest stick which can be insertedcupboard with its base inside

Answer 1

Diagonal of cupboard= √( k^2 +√2k ^2 +k^2 )

====================√(4k^2)

==================== 2k



Cos@ = √3k /2k

Cos@ = Cos 60°

@=60°