Question

The external dimensions of an open wooden box are 65cm, 34cm and 25cm. If the box is made up of wood 2cm thick, find the capacity of the box and the volume of wood used to make it.​

Answer 1

External length of the open box = 65 cm External breadth of the open box = 34 cm External height of the open box = 25 cm External volume of the open box = 65 x 34 x 25 cm3 = 55250 cm3 Internal length of open box = 65 – (2 x 2) cm = 61 cm Internal breadth of a open box = 34 – (2 x 2) cm = 30 cm Internal height of open box = 25 – 2 cm = 23 cm Internal volume of open box or capacity of the box = 61 x 30 x 23 cm3 = 42090 cm3 Volume of wood required to make the closed box = 55250 – 42090 cm3 = 13160 cm3 Read more on Sarthaks.com - https://www.sarthaks.com/172532/the-external-dimensions-an-open-wooden-box-are-65-cm-34-cm-and-25-cm-if-the-box-is-made-up-of-wood