\( \sqrt{81} \) के बारे में सही विकल्प कौन-सा है?

Which option is correct about \( \sqrt{81} \)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. यह परिमेय हैIt is rational

Step 1

Concept

\( \sqrt{81}=9 \), so it is a rational number. Remember square roots of perfect squares.

Step 2

Why this answer is correct

The correct answer is C. यह परिमेय है / It is rational. \( \sqrt{81}=9 \), so it is a rational number. Remember square roots of perfect squares.

Step 3

Exam Tip

\( \sqrt{81}=9 \) है, इसलिए यह परिमेय संख्या है। पूर्ण वर्गों के वर्गमूल याद रखें।

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Mathematics Answer, Explanation and Revision Hints

\( \sqrt{81} \) के बारे में सही विकल्प कौन-सा है? / Which option is correct about \( \sqrt{81} \)?

Correct Answer: C. यह परिमेय है / It is rational. Explanation: \( \sqrt{81}=9 \) है, इसलिए यह परिमेय संख्या है। पूर्ण वर्गों के वर्गमूल याद रखें। / \( \sqrt{81}=9 \), so it is a rational number. Remember square roots of perfect squares.

Which concept should I revise for this Mathematics MCQ?

\( \sqrt{81}=9 \), so it is a rational number. Remember square roots of perfect squares.

What exam hint can help solve this Mathematics question?

\( \sqrt{81}=9 \) है, इसलिए यह परिमेय संख्या है। पूर्ण वर्गों के वर्गमूल याद रखें।