वर्गमूल सर्पिल में \(\sqrt{21}\) बनाने के लिए किस पिछले कर्ण का उपयोग होगा?
Which previous hypotenuse is used to make \(\sqrt{21}\) in a square root spiral?
Explanation opens after your attempt
B. \(\sqrt{20}\)
Concept
\(\sqrt{21}\) is formed from \(\sqrt{20}\) and a (1) unit perpendicular. The previous hypotenuse has one less number.
Why this answer is correct
The correct answer is B. \(\sqrt{20}\). \(\sqrt{21}\) is formed from \(\sqrt{20}\) and a (1) unit perpendicular. The previous hypotenuse has one less number.
Exam Tip
\(\sqrt{20}\) और (1) इकाई लंब से \(\sqrt{21}\) बनता है। पिछले कर्ण में संख्या एक कम होती है।
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