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I need this fast sooo help meee
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5 votes
I need this fast sooo help meee

I need this fast sooo help meee-example-1
User Measureallthethings
by
4.9k points

1 Answer

4 votes

Answer:

1) 366

2) 448

3) 748

Explanation:


SA_1 = 2(lw + lh + wh) = 2(13 * 9 + 13 * 3 + 9 * 3) = 2(117 + 39 + 27) = 2 * 183 = 366


SA_2 = 2(lw + lh + wh) = 2(20 * 4 + 20 * 6 + 4 * 6) = 2(80 + 120 + 24) = 2 * 224 = 448


SA_3 = 2(lw + lh + wh) = 2(16 * 14 + 16 * 5 + 14 * 5) = 2(224 + 80 + 70) = 2 * 374 = 748

User Ianna
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