मराठी

In ΔABC and ΔDEF, we have (AB)/(DE) = (BC)/(EF) = (AC)/(DF) = 5/7, then ar(ΔABC) : ar(ΔDEF) = ?

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प्रश्न

In ΔABC and ΔDEF, we have `(AB)/(DE) = (BC)/(EF) = (AC)/(DF) = 5/7`, then ar(ΔABC) : ar(ΔDEF) = ?

पर्याय

  • 5 : 7

  • 25 : 49

  • 49 : 25

  • 125 : 343

MCQ
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उत्तर

25 : 49

Explanation:

The triangles are similar corresponding sides in ratio 5 : 7. 

The ratio of areas of similar triangles equals the square of the ratio of corresponding sides, so `ar(ΔABC) : ar(ΔDEF) = (5/7)^2 = 25 : 49`.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Triangles - MULTIPLE-CHOICE QUESTIONS (MCQ) [पृष्ठ ४५६]

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आर. एस. अग्रवाल Mathematics [English] Class 10
पाठ 7 Triangles
MULTIPLE-CHOICE QUESTIONS (MCQ) | Q 43. | पृष्ठ ४५६
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