Question

A suitcase measures 20 inches long and 15 inches high. What is the diagonal length of the suitcase?

Answer 1

The diagonal length of the suitcase is `25` inches.

Explanation:

A suitcase is of the shape of cuboid and has length, width and height. However if it is not placed flat on a surface, but is closed and kept in a vertically upright position, its width may be termed as height, which is given as `15` inches. As length is `20` inches, its diagonal would be

`sqrt(20^2+15^2)=sqrt(400+225)=sqrt625=25`

Hence, the diagonal length of the suitcase is `25` inches.