what are the dimensions the base of box 2? (a)9cm×9CM (b) 8cm× 1cm (c) 8cm×8cm (d) 9cm×2cm
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Answer:
Length=20cm, Breadth=10cm. Height=9cm
External volume of box=20×10×9=1800cm
2
Thickness of wood=1cm
Internal volume of box=(20−2)(10−2)(9−2)=1008cm
2
Thus, volume of wood=1800−1008=792cm
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