a rectangular block measures 18cm by 12cm by 14cm.calculate the total surface area of the block?
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Answered by
7
Answer:
Total surface area of a cuboid is
2 (lb + bh + hl)
= 2 (18 × 12 + 12 × 14 + 18 × 14)
= 2 (216 + 168 + 252)
= 2 × 636
= 1272 cm²
Answered by
2
Step-by-step explanation:
Length of rectangular block = 18cm
Breadth of rectangular block = 12cm
Height of rectangular block = 14cm
Total surface area of rectangular block (perimeter) =2lb+ 2bh+ 2hl
=2*18*12 + 2*12*14 + 2*14*18=(432 +336 +304)cm=1272cm
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