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Question

The perimeters of two similar triangles are 30cm and 20cm respectively. If one side of the first triangle is 12cm determine the corresponding side of the second d triangle.

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Solution

If two triangles are similar then ratio of the perimeters of the triangles is equal to the ratio of their corresponding sides.

Let the required side be 'x'.

Following this theorem, just plug the values.

30/20 = 12/x
3/2 = 12/x
x = 24/3
x = 8

So required value of the corresponding side is 8 cm.

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