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Similarity — Mathematics STD 10 — Question

ICSE BoardEnglish MediumSTD 10MathematicsSimilarity1 Mark
Question
A triangle ABC has been enlarged by scale factor m = 2.5 to the triangle A' B' C' Calculate : the length of AB, if A' B' = 6 cm.
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Answer

Given that ABC has been enlarged by scale factor m = 2.5 to the triangle A' B' C'
A' B' = 6cm
So, AB (2.5) = A'B'
$\Rightarrow$ AB (2.5) = 6
$\Rightarrow$ AB = 2.4 cm

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