A closed box measured 66 cm , 36 cm and 21 cm from outside , if its walls are made of metal sheet , 0.5 cm thick ;find the capacity of the box . [step 1] find the internal length , breadth and height .[ step 2] find the internal volume of the box .[step 3 ] find the capacity of the box and write the required answer with proper units *
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Answer:
Volume of external dimension=66×36×21cm
3
=49896cm
3
The thickness of metal sheet is 0.5cm
∴ Volume of internal dimension of 0.5 cm = Capacity of the box
=(66−1)(36−1)(21−1)=65×35×20cm
3
=45500cm
3
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