సాధారణ అష్టభుజి యొక్క అంతర్గత కోణాల కొలతల నిష్పత్తి సాధారణ డోడ్కాగన్కు ఉంటుంది:

This question was previously asked in
RRC Group D Previous Paper 39 (Held On: 12 Oct 2018 Shift 3)
View all RRB Group D Papers >
  1. 8: 12
  2. 9: 10
  3. 12: 8
  4. 4: 5

Answer (Detailed Solution Below)

Option 2 : 9: 10
Free
RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

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భావన:

అష్టభుజికి ఎనిమిది వైపులా ఉన్నాయి.

డోడెకాగాన్ పన్నెండు వైపులా ఉంది.

ఫార్ములా:

బహుభుజి యొక్క అంతర్గత కోణం = {(n - 2) × 180 °} / n

లెక్కింపు:

అష్టభుజి యొక్క అంతర్గత కోణం = (8 - 2) / 8 × 180 ° = 1080 ° / 8 = 135 °

డోడెకాగాన్ యొక్క అంతర్గత కోణం = (12 - 2) / 12 × 180 ° = 1800 ° / 12 = 150 °

 అష్టభుజి నిష్పత్తి: డోడెకాగాన్ = 9: 10

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