Jawab:
Penjelasan dengan langkah-langkah:
Keliling = 80
AB = BC + 2
2 x (AB + BC) = 80
AB + BC = 80/2
AB + BC = 40
BC + 2 + BC = 40
2BC = 40 - 2
2BC = 38
BC = 38/2
BC = 19
AB = 19 + 2
AB = 21
Jadi, panjang sisi AB dan BC berturut-turut adalah 21 cm dan 19 cm.
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Jawab:
Penjelasan dengan langkah-langkah:
Keliling = 80
AB = BC + 2
2 x (AB + BC) = 80
AB + BC = 80/2
AB + BC = 40
BC + 2 + BC = 40
2BC = 40 - 2
2BC = 38
BC = 38/2
BC = 19
AB = 19 + 2
AB = 21
Jadi, panjang sisi AB dan BC berturut-turut adalah 21 cm dan 19 cm.