Let the length of the base of the triangle be 3 * X cm, then the length of the side of the triangle is 4 * X.
The perimeter of the triangle is: P = 3 * X + 4 * X + 4 * X = 33 cm.
11 * X = 33 cm.
X = 33/11 = 3.
Then AC = 3 * 3 = 9 cm.
BC = ВA = 4 * 3 = 12 cm.
Answer: The sides of the triangle are 9 cm, 12 cm, 12 cm.
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