பக்க நீளம் 'x' கொண்ட சமபக்க முக்கோணத்தின் எந்தப் பக்கத்திலிருந்தும் ஈர்ப்பு மையத்தின் தூரம் எவ்வளவு?

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PGCIL DT Civil 5 May 2023 Official Paper
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  1. \(\frac{x}{2 \sqrt{3}}\)
  2. \(\frac{x \sqrt{3}}{2}\)
  3. \(\frac{x}{3 \sqrt{2}}\)
  4. \(\frac{x \sqrt{2}}{3}\)

Answer (Detailed Solution Below)

Option 1 : \(\frac{x}{2 \sqrt{3}}\)
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Detailed Solution

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கருத்து:

ஒரு சமபக்க முக்கோணத்தின் ஈர்ப்பு மையம் \( = \frac{1}{3}h\)

கணக்கீடு:

SSC JE CE 16 SOM images Q21

\(h^2+ ({\frac a2})^2=a^2\)

\(h= \frac{{\sqrt 3 }}{2}a\)

ஒரு சமபக்க முக்கோணத்தின் ஈர்ப்பு மையம் \( = \frac{1}{3}h\)

\(= \frac{1}{3} \times \frac{{\sqrt 3 }}{2}a = \frac{a}{{2\sqrt 3 }}\)

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