find the total surface area of a cuboid whose dimensions are 12cmx15cmx18cm
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1332 cm²
Step-by-step explanation:
Total surface area of a cuboid = 2(lb+bh+hl)
= 2 ( 12×15 +15×18+18×15)
= 2 ( 180+270+216)
= 2(666)
= 1332cm²
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