సాధారణ బహుభుజి యొక్క ప్రతి అంతర్గత కోణం 135° అయితే, బహుభుజి యొక్క వికర్ణాల సంఖ్యను కనుగొనండి.

  1. 12
  2. 14
  3. 16
  4. 20

Answer (Detailed Solution Below)

Option 4 : 20
Free
RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

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సాధారణ బహుభుజి యొక్క ప్రతి అంతర్గత కోణం 135°,

⇒ బాహ్య కోణం = 180° - అంతర్గత కోణం = 45°

⇒ బహుభుజి యొక్క భుజాల సంఖ్య = 360°/బాహ్య కోణం = 8

∴ వికర్ణాల సంఖ్య = n(n - 3)/2 = 8 × (8 - 3)/2 = 20, ఇక్కడ n అనేది బహుభుజి యొక్క భుజాల సంఖ్య

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