Penjelasan dengan langkah-langkah:
pada gambar misalkan itu bangun abcd.efgh
dimana:
ab = (cd + ef + gh) cm = (5 + 8 + 5) cm = 18 cm , bc = ah = 18 cm , cd = gh = 5 cm , de = fg = 12 cm , ef = 8 cm
keliling bangun:
K = (ab + bc + cd + de + ef + fg + gh + ah) cm
K = (18 + 18 + 5 + 12 + 8 + 12 + 5 + 18) cm
K = (36 + 17 + 20 + 23) cm
K = (53 + 43) cm
K = 96 cm
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Verified answer
Penjelasan dengan langkah-langkah:
pada gambar misalkan itu bangun abcd.efgh
dimana:
ab = (cd + ef + gh) cm = (5 + 8 + 5) cm = 18 cm , bc = ah = 18 cm , cd = gh = 5 cm , de = fg = 12 cm , ef = 8 cm
keliling bangun:
K = (ab + bc + cd + de + ef + fg + gh + ah) cm
K = (18 + 18 + 5 + 12 + 8 + 12 + 5 + 18) cm
K = (36 + 17 + 20 + 23) cm
K = (53 + 43) cm
K = 96 cm