Question 145

The perimeters of two similar triangles ΔABC andCare 36cm and 24 cm respectively. If PQ = 10 cm, then AB is:

Solution

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In Similar triangles , corresponding sides are of same proportion.
$$\frac{ Perimeter ΔABC }{ Perimeter ΔPQR }=\frac{AB}{PR}$$
$$\frac{ 36 }{ 24 }=\frac{AB}{10}$$
Ab = 15



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