Question

Area (∆ABC) : Area (∆DEF) = 25 : 36. Then AB : DE is ? *​

Answer 1

Step-by-step explanation:

In correspondence to the area of a triangle, their areas are equal to the square of sides of corresponding sides... Therefore we calculate,

${ (\frac{AB}{DE})}^{2} = \frac{ar(∆ABC)}{ar(∆DEF)} = \frac{25}{36} \\ \\ \frac{AB}{DE } = \frac{5}{6}$

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