luas = 228 cm²
panjang = 19 cm
lebar ... ?
L = p × l
228 = 19 × l
l = 228 ÷ 19
l = 12 cm
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Diketahui :
luas = 228 cm²
panjang = 19 cm
Ditanya :
lebar ... ?
Jawaban :
L = p × l
228 = 19 × l
l = 228 ÷ 19
l = 12 cm