if the internal dimensions of a closed box made up of wood 1.5 cm thick are 24 cm ,18 cm and 12 cm, find the volume of wooden box .THIS IS THE QUESTION.... .....THE ANSWER IS IN THE ATACHMENT........ I wanna know that why the thickness is multiplied by 2 ?????????????????
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because in calculating outer length and breadth and height thickness on both opposite side is calculated.
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Volume of wood used in box = 3321 cm³
Step-by-step explanation:
Internal dimensions of a closed box made up of wood 1.5 cm thick are 24 cm ,18 cm and 12 cm
Internal Volume of the Box = 24 * 18 * 12 cm³
Thickness = 1.5 cm
Thickness is on 6 faces of Box
Outer Volume
= (24 + 1.5 + 1.5) * (18 + 1.5 + 1.5) * ( 12 + 1.5 + 1.5)
= 27 * 21 * 15 cm³
Volume of wood used in box = 27 * 21 * 15 - 24 * 18 * 12
= 8505 - 5184
= 3321 cm³
Volume of wood used in box = 3321 cm³
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