The sides of the triangle are 3,4 and 5. The perimeter of a similar triangle is 24. Find the larger side of the second triangle.

Find the perimeter of the first triangle: 3 + 4 + 5 = 12.

The perimeter of a similar but larger triangle is 24: 12 = 2 times the first.

With a similar ratio of the three sides of the triangle, the length of the largest side of the second triangle will be: 5 * 2 = 10 cm.



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