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p = 5x + 2
l = 2x + 3
K = 2 ( p + l )
94 = 2 ( 5x + 2 + 2x + 3 )
94 = 2 ( 7x + 5 )
94 = 14x + 10
94 - 10 = 14x
x = 84/14
x = 6
Panjang = 5x + 2
= 5(6) + 2
= 30 + 2 = 32 cm
Lebar = 2x + 3
= 2(6) + 3
= 12 + 3 = 15 cm
94: 2(5x+2+2x+3)
94: 14x+10
x: 6
panjang:32
lebar:15
maaf klo kurang tepat