Pada Jajar Genjang PQRS, panjang PQ = ( 3x - 38 ) cm dan panjan RS = ( x + 9 ) cm. Panjang sisi PQ sama dengan... kasih tau sekalian caranya ya
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PQ=RS
3x-5=x+9
3x-x=9+5
2x=14
x=7
panjang PQ
=3x-5
=3(7)-5
=21-5
=16cm
panjang RS=PQ
x+9=3x-5
-2x=-9-5
x=
x= 7
Panjang PQ =3x-5 = (3 x 7)-5 = 21-5 =16