jawaban
P = 40cm
L = 35cm
penjelasan
misal : lebar = b maka panjang = b+5
(karena panjang 5 cm lebih dari lebar
k= 150
2(p+l)=150
2(b+5+b)=150
2(2b+5)=150
4b+10=150
4b=150-10
4b=140
b=140/4
b=35
panjang = b+5
=35+5=40cm
lebar =35 cm
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jawaban
P = 40cm
L = 35cm
penjelasan
misal : lebar = b maka panjang = b+5
(karena panjang 5 cm lebih dari lebar
k= 150
2(p+l)=150
2(b+5+b)=150
2(2b+5)=150
4b+10=150
4b=150-10
4b=140
b=140/4
b=35
panjang = b+5
=35+5=40cm
lebar =35 cm