हिंदी

In an isosceles ΔАBC, if AC = BC and AB^2 = 2AC^2 then C = ?

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प्रश्न

In an isosceles ΔАBC, if AC = BC and AB2 = 2AC2 then C = ?

विकल्प

  • 30°

  • 45°

  • 60°

  • 90°

MCQ
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उत्तर

90°

Explanation:

AB2 = 2AC2

= AC2 + AC2

= BC2 + AC2    ...[∵ AC = BC]

∴ By converse of Pythagoras' theorem, we have ∠C = 90°.

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अध्याय 7: Triangles - MULTIPLE-CHOICE QUESTIONS (MCQ) [पृष्ठ ४५६]

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आर.एस. अग्रवाल Mathematics [English] Class 10
अध्याय 7 Triangles
MULTIPLE-CHOICE QUESTIONS (MCQ) | Q 49. | पृष्ठ ४५६
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