How many wooden cubic blocks, each of side 2 cm, should be arranged to form a cuboid with dimemsions 10 dm × 8 dm × 40 cm.
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Answer:
Area of cubic blocks = 6× 2×2
= 24cm ^ 2
Area of cuboid = 2( lb. bh.hl)
1dm = 10cm
10dm = 100cm
8dm = 80cm
= 2(100× 80 + 80× 40+ 40× 100)
= 2( 8000+ 3200+ 4000)
= 2 × 15200 = 30400cm^2
No. of cubic blocks = 30400÷ 24= 1266
Step-by-step explanation:
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