वर्गमूल सर्पिल में यदि नया कर्ण \(\sqrt{n+1}\) है और यह पूर्ण संख्या (12) है, तो पिछला कर्ण कौन-सा था?

In a square root spiral, if the new hypotenuse is \(\sqrt{n+1}\) and it is the whole number (12), what was the previous hypotenuse?

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Correct Answer

B. \(\sqrt{143}\)

Step 1

Concept

The new hypotenuse is \(12=\sqrt{144}\), so (n+1=144). Therefore the previous hypotenuse was \(\sqrt{143}\).

Step 2

Why this answer is correct

The correct answer is B. \(\sqrt{143}\). The new hypotenuse is \(12=\sqrt{144}\), so (n+1=144). Therefore the previous hypotenuse was \(\sqrt{143}\).

Step 3

Exam Tip

नया कर्ण \(12=\sqrt{144}\) है, इसलिए (n+1=144)। अतः पिछला कर्ण \(\sqrt{143}\) था।

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Mathematics Answer, Explanation and Revision Hints

वर्गमूल सर्पिल में यदि नया कर्ण \(\sqrt{n+1}\) है और यह पूर्ण संख्या (12) है, तो पिछला कर्ण कौन-सा था? / In a square root spiral, if the new hypotenuse is \(\sqrt{n+1}\) and it is the whole number (12), what was the previous hypotenuse?

Correct Answer: B. \(\sqrt{143}\). Explanation: नया कर्ण \(12=\sqrt{144}\) है, इसलिए (n+1=144)। अतः पिछला कर्ण \(\sqrt{143}\) था। / The new hypotenuse is \(12=\sqrt{144}\), so (n+1=144). Therefore the previous hypotenuse was \(\sqrt{143}\).

Which concept should I revise for this Mathematics MCQ?

The new hypotenuse is \(12=\sqrt{144}\), so (n+1=144). Therefore the previous hypotenuse was \(\sqrt{143}\).

What exam hint can help solve this Mathematics question?

नया कर्ण \(12=\sqrt{144}\) है, इसलिए (n+1=144)। अतः पिछला कर्ण \(\sqrt{143}\) था।