एक वर्ग की विकर्ण 10√ 2 सेमी है, उसका परिमाप ज्ञात कीजिए?

  1. 160 सेमी
  2. 80 सेमी
  3. 20 सेमी
  4. 40 सेमी

Answer (Detailed Solution Below)

Option 4 : 40 सेमी
Free
RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

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जैसा कि उपरोक्त आरेख में दर्शाया गया है,

विकर्ण AC = 10√2

अब ABC, AB = BC के साथ समकोण त्रिभुज बनाता है

पाइथागोरस प्रमेय द्वारा,

AB2 + BC2 = AC2

2AB2= 100 × 2

AB2 = 100

AB = 10

वर्ग का परिमाप = 4 AB = 40 सेमी

वैकल्पिक समाधान:

"a" भुजा वाले किसी भी वर्ग के लिए

विकर्ण = a√2

इसलिए, a√2 = 10√2

⇒ भुजा = a = 10 

एक वर्ग का परिमाप = 4a

∴ एक वर्ग का परिमाप = 40 सेमी

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