यदि \( \sqrt{72} \) सर्पिल में बना है, तो इसे \(a\sqrt{2}\) के रूप में लिखने पर (a) क्या होगा?

If \( \sqrt{72} \) is formed in the spiral, what is (a) when it is written as \(a\sqrt{2}\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

D. (6)

Step 1

Concept

\( \sqrt{72}=\sqrt{36\times 2}=6\sqrt{2} \), so (a=6). Look for a perfect-square factor.

Step 2

Why this answer is correct

The correct answer is D. (6). \( \sqrt{72}=\sqrt{36\times 2}=6\sqrt{2} \), so (a=6). Look for a perfect-square factor.

Step 3

Exam Tip

\( \sqrt{72}=\sqrt{36\times 2}=6\sqrt{2} \), इसलिए (a=6)। गुणनखंड में पूर्ण वर्ग ढूँढें।

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Mathematics Answer, Explanation and Revision Hints

यदि \( \sqrt{72} \) सर्पिल में बना है, तो इसे \(a\sqrt{2}\) के रूप में लिखने पर (a) क्या होगा? / If \( \sqrt{72} \) is formed in the spiral, what is (a) when it is written as \(a\sqrt{2}\)?

Correct Answer: D. (6). Explanation: \( \sqrt{72}=\sqrt{36\times 2}=6\sqrt{2} \), इसलिए (a=6)। गुणनखंड में पूर्ण वर्ग ढूँढें। / \( \sqrt{72}=\sqrt{36\times 2}=6\sqrt{2} \), so (a=6). Look for a perfect-square factor.

Which concept should I revise for this Mathematics MCQ?

\( \sqrt{72}=\sqrt{36\times 2}=6\sqrt{2} \), so (a=6). Look for a perfect-square factor.

What exam hint can help solve this Mathematics question?

\( \sqrt{72}=\sqrt{36\times 2}=6\sqrt{2} \), इसलिए (a=6)। गुणनखंड में पूर्ण वर्ग ढूँढें।