Jawaban:
Luas=216 m²
p=l+6 m
l=?
Luas=p×l
216 = (l+6)×l
216 = l²+6l
l²+6l-216=0
(l+18)(l-12) =0
l=-18(TM), l=12
maaf kalo salah:)
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Jawaban:
Luas=216 m²
p=l+6 m
l=?
Luas=p×l
216 = (l+6)×l
216 = l²+6l
l²+6l-216=0
(l+18)(l-12) =0
l=-18(TM), l=12
maaf kalo salah:)