Question

The perimeter of two similar triangles are 25 cm and 15cm respectively .if one side of the first triangle is 9cm .determine the vorresponding side of the second triangle

Answer 1

Let ABC and PQR are two similar triangles.

Then,
Perimeter of ΔABC ÷ Perimeter of ΔPQR $= \frac{AB}{PQ}$

⇒ $\frac{25}{15} = \frac{9}{x}$

∴ $x= \frac{15*9}{25} = 5.4 cm$

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