Find the ratio of the total surface area to the lateral surface area of a cuboid whose dimensions are 8cm, 4cm and 3cm. *
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Total surface area of cuboid = lb + bh + hl
= 8x4 + 4x3 + 3x8
= 32 + 12 + 24
= 68 sq. cm
Lateral Surface area of cuboid = 2(l + b) x h
= 2(8 + 4) x 3
= 2x12x3
= 72 sq. cm
Ratio = Total surface area / Lateral surface area
= 68/72
= 17:18
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