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5x + 3x + 2x = 29 + 2 + 1
10x = 32
x = 32/10
x = 16/5
Sisi I.
5x - 2
= 5(16/5) - 2
= 14 cm
Sisi II.
3x
= 3(16/5)
= 9,6 cm
Sisi III
2x - 1
= 2(16/5) - 1
= 5,4 cm