The perimeters of two similar triangles are 25cm and 15cm respectively. If
one side of the first triangle is 9cm, find the length of the corresponding side
of the second triangle.
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Answer:
ratio of the perimeter of 2 similar triangles = ratio of corresponding sides
25÷ 15 = 9 ÷ side
side = 9 × 15 ÷ 25
=5.4
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