The perimeter of two similar triangleare 32 cm and 20 cm respectively. If DE = 8 cm, then AB is Choose the correct answer: a) 12.8 cm b) 12 cm c) 18 cm d) 8.2 cm
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Assuming AB to be the corresponding part in the first triangle (32cm perimeter) with respect to DE.
The ratio of the perimeters of the triangles can be equated to the ratio of the corresponding sides, i.e, 32:20::8:5::AB:DE
=> 8/5=AB/8 => AB=12.8cm
The ratio of the perimeters of the triangles can be equated to the ratio of the corresponding sides, i.e, 32:20::8:5::AB:DE
=> 8/5=AB/8 => AB=12.8cm
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