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No one helped me with the last one so can SOMEONE HELP ME NOW

No one helped me with the last one so can SOMEONE HELP ME NOW-example-1
User Ji Fang
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7.6k points

1 Answer

4 votes

Answer:

4) 724

5) 750

6) 390

Explanation:


SA_1 = 2(lw + lh + wh) = 2(17 * 14 + 17 * 4 + 14 * 4) = 2(238 + 68 + 56) = 2 * 362 = 724


SA_2 = 2(lw + lh + wh) = 2(19 * 13 + 19 * 4 + 13 * 4) = 2(247 + 76 + 52) = 2 * 375 = 750


SA_3 = 2(lw + lh + wh) = 2(14 * 9 + 14 * 3 + 9 * 3) = 2(126 + 42 + 27) = 2 * 195 = 390

User Nokieng
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