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Jawaban:
60 cm
Penjelasan dengan langkah-langkah:
CD = 9 cm
BC = AE = 12 cm
AB = CE = 15 cm
K = ...
DE² = CE² - CD²
DE² = 15² - 9²
DE² = 225 - 81
DE² = 144
DE = 12 cm
K = AB + BC + CD + DE + AE
K = 15 + 12 + 9 + 12 + 12
K = 60 cm
DE² = CE² - CD²
DE² = 15² - 9²
DE² = 225 - 81
DE² = akar pangkat 144
DE = 12 cm
K = AB + BC + CD + DE + AE
K = 15 + 12 + 9 + 12 + 12
K = 60 cm
Penjelasan dengan langkah-langkah: