Respuesta :

akephd
The answer is 7cm.
Volume=length x width x height
So V = 14(3)w
So 294 v 42w
Divide 294 by 42 to get 7 cm

Answer:

W = 294/ 3 x 14


Step-by-step explanation:

since, V= L x W x H

                 W x 14 x 3 = 294

                        W x 42=  294/ 42

                                    W = 7