Find the volume of a wood required to make open box with external dimensions 17.5 cm long , 14 cm wide , 10 cm high , wood 7.5 mm thick.
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The outer volume is 17.5 x 14 x 10 cm^3 = 2450 cm^3
Assuming it is open on the top, the open space is (length - 2 * thickness) * (width - 2 * thickness) * ( height - thickness)
Notice 7.5 mm = 0.75 cm and 2 x 7.5 mm = 1.5 cm
Open space = (17.5 - 1.5 ) ( 14 - 1.5 ) (10 - 0.75) = 16 * 12.5 * 9.25 = 1850 cm^3
The volume of wood is 2450 - 1850 = 600 cm^3
Assuming it is open on the top, the open space is (length - 2 * thickness) * (width - 2 * thickness) * ( height - thickness)
Notice 7.5 mm = 0.75 cm and 2 x 7.5 mm = 1.5 cm
Open space = (17.5 - 1.5 ) ( 14 - 1.5 ) (10 - 0.75) = 16 * 12.5 * 9.25 = 1850 cm^3
The volume of wood is 2450 - 1850 = 600 cm^3
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