Question

a. A wooden box is made with external dimensions of 45 cm x 40 cm x 34 cm. The entire
thickness of the wood is 2.5 cm. Find its volume.​

Answer 1

Answer:

20.3 cm is the correct answer

Answer 2

Step-by-step explanation:

The volume of wood present in it is given by

External volume −Internal volume

Here,

External dimensions are ,L=40 cm,B=34 cm and H=30 cm

Hence, internal dimensions are,L=40−2×1=40−2=38cm

B=34−2×1=34−2=32cm

H=30−2×1=30−2=28cm

Now, external volume=(40×34×30)cm

3

=40800cm

3

And internal volume =(38×32×28)cm

3

=34048cm

3

Hence , volume of wood present in it=(40800−34048)cm

3

=6752cm

3