Jawabanmu

2014-04-13T21:18:58+07:00
L alas =  \frac{V}{t}
L alas =  \frac{200}{8}
L alas = 25

ukuran sisi =  \sqrt{25} = 5

LP = 2La + 4Lsisitegak
LP = 2×25 + 4 (8×5)
LP = 50 + 4×40
LP = 50 + 160
LP = 210
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