Penjelasan dengan langkah-langkah:
k = 2 × (a + b)
50 = 2a + 2b
50 = 30 + 2b
50 - 30 = 2b
20 = 2b
b = 20/2
b = 10 cm (untuk satu sisi)
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Penjelasan dengan langkah-langkah:
k = 2 × (a + b)
50 = 2a + 2b
50 = 30 + 2b
50 - 30 = 2b
20 = 2b
b = 20/2
b = 10 cm (untuk satu sisi)