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10. The Total surface area of cuboid 758 sq. cm has length and breadth14cm and 11 cmrespectively. Find the height of the cuboid? |
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Answer» Step-by-step explanation: SURFACE AREA of cuboid =2(lb+bh+HL) Surface Area of cuboid = 758 sq. cm ( given ) length = 14 cm breadth = 11 cm height = ? cm ATQ 2(lb+bh+hl) = 758 lb + bh + hl = 758/2 lb + bh + hl = 379 14 x 11 + 11h + 14 h = 379 154 + 25h = 379 25 h = 379 - 154
25h = 225 h = 225/25 h = 45/5 h = 9 cms.
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