find the total surface of area of cuboid whose measures are lbh
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Step-by-step explanation:
Total surface area of a cube = 6 (side)2. Lateral surface area of a cuboid = 2 × height × (length + breadth). Total surface area of a cuboid = 2(lb + bh + hl).
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Step-by-step explanation:
Given that l=20cm, b=12cm, h=9cm
∴T.S.A=2(lb+bh+lh)
=2[(20×12)+(12×9)+(20×9)]
=2(240+108+180)
=2×528
∴T.S.A=1056cm
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