Jawaban:
1050 m²
Penjelasan dengan langkah-langkah:
Diket
K = 142m
p = 8+2l
Ditanya L?
K = 2(p+l)
142 = 2(8+2l+l)
142 = 2(8+3l)
142 = 16+6l
142-16 = 6l
126 = 6l
l = 21
jadi
p = 8+21.2
p = 50m
L = p×l
L = 50×21
L = 1050 m²
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Jawaban:
1050 m²
Penjelasan dengan langkah-langkah:
Diket
K = 142m
p = 8+2l
Ditanya L?
K = 2(p+l)
142 = 2(8+2l+l)
142 = 2(8+3l)
142 = 16+6l
142-16 = 6l
126 = 6l
l = 21
jadi
p = 8+2l
p = 8+21.2
p = 50m
L = p×l
L = 50×21
L = 1050 m²