Assertion: If the inner dimensions of a cuboidal box are 50 cm×40 cm×30 cm, then the length of the longest rod that can be placed in the box is 50√2 cm. Reason: The line joining opposite corners of a cuboid is called its diagonal. Also, length of longest rod = length of diagonal =√l2+b2+h2

Assertion: If the inner dimensions of a cuboidal box are 50 cm×40 cm�

1.	Assertion: If the inner dimensions of a cuboidal box are 50 cm×40 cm×30 cm, then the length of the longest rod that can be placed in the box is 50√2 cm. Reason: The line joining opposite corners of a cuboid is called its diagonal. Also, length of longest rod = length of diagonal =√l2+b2+h2
Answer» Assertion: If the inner dimensions of a cuboidal box are $50 c m \times 40 c m \times 30 c m,$ then the length of the longest rod that can be placed in the box is $50 \sqrt{2} c m$ . Reason: The line joining opposite corners of a cuboid is called its diagonal. Also, length of longest rod $=$ length of diagonal $= \sqrt{l^{2} + b^{2} + h^{2}}$