Question

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

Answer 1

Answer:

8882cm^2

Step-by-step explanation:

exteranl dimensions A.Q

• L=65cm B=34cm H=25cm
• volume of open cuboid= LBH
• =65×34×25
• =55250cm^2

the wood is 2cm thick

so,

inner dimensions are

• l=65-4=61 b=30 h=21
• capacity of the cuboid (inner volume)= lbh
• =61×30×21
• =38430cm^2

so volume of wood used is=

outer volume-inner volume

• 55250-38430
• =16820cm^2

hope this helps