Question

A closed wooden box measures externally 10 cm long , 8 cm broad and 6 cm high . thickness of wood is 0.5 cm .find the volume of wood used

Answer 1

Exterior volume= l×b×h
10×8×6=480
thickness=0.5
interior volume=
$9.5 \times 7.5 \times 5.5 = 391.875$

volume of wood used = Exterior volume - interior volume
480 - 391.875 =88.125