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2(2x+5+6)=50
2x+11=25
2x=14
x=7
maka panjangnya adalah 19
luasnya adalah p.l = 19.6=114
4x + 10 + 12 = 50
4x = 50 - 22
4x = 28
x = 7
Panjang = 2x+5 = 2.7+5 = 14+5 = 19 cm
Luas = p x l = 19 x 6 = 114 cm