Jawaban:
k = 2(p+l)
76 = 2((6x-3)+(3x+5))
76 = (12x-6)+(6x+10)
76 = 18x+4
76-4 = 18x
72 = 18x
x = 72/18
x = 4
Maka:
p = 6x-3
= 6(4)-3
= 24-3 = 21 cm
l = 3x+5
= 3(4)+5
= 12+5 = 17 cm
Maaf kalau salah
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Jawaban:
k = 2(p+l)
76 = 2((6x-3)+(3x+5))
76 = (12x-6)+(6x+10)
76 = 18x+4
76-4 = 18x
72 = 18x
x = 72/18
x = 4
Maka:
p = 6x-3
= 6(4)-3
= 24-3 = 21 cm
l = 3x+5
= 3(4)+5
= 12+5 = 17 cm
Maaf kalau salah