Question

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Answer 1

Here we need to find TSA of the cuboid .

$given : \: l = 18 \: cm \\ b = 15 \: cm \\ h = 14cm\\ TSA \: of \: cuboid \: = 2(lb + \: lh + bh) \\ = 2(18 \times 15 + 18 \times 14 + 15 \times 14) \\ = > 2(270 + 252 + 210) \\ = > 2(732) \\ = > 1464 \: cm ^{2}$

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• • The material required is 1464 cm ^2

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Answer 2

Answer:

4. 1464 cm sq

5. 276 inch sq