यदि \(OP=\sqrt{20}\) है, तो इससे ठीक पहले बने कर्ण की लंबाई क्या थी?

If \(OP=\sqrt{20}\), what was the length of the hypotenuse formed just before it?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. \(\sqrt{19}\)

Step 1

Concept

In the immediately previous step, the number under the root is (1) less, so the length is \(\sqrt{19}\). Learn to read the sequence backward too.

Step 2

Why this answer is correct

The correct answer is B. \(\sqrt{19}\). In the immediately previous step, the number under the root is (1) less, so the length is \(\sqrt{19}\). Learn to read the sequence backward too.

Step 3

Exam Tip

ठीक पहले वाले चरण में वर्गमूल के अंदर की संख्या (1) कम होगी, इसलिए लंबाई \(\sqrt{19}\) है। क्रम को पीछे से पढ़ना भी सीखें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(OP=\sqrt{20}\) है, तो इससे ठीक पहले बने कर्ण की लंबाई क्या थी? / If \(OP=\sqrt{20}\), what was the length of the hypotenuse formed just before it?

Correct Answer: B. \(\sqrt{19}\). Explanation: ठीक पहले वाले चरण में वर्गमूल के अंदर की संख्या (1) कम होगी, इसलिए लंबाई \(\sqrt{19}\) है। क्रम को पीछे से पढ़ना भी सीखें। / In the immediately previous step, the number under the root is (1) less, so the length is \(\sqrt{19}\). Learn to read the sequence backward too.

Which concept should I revise for this Mathematics MCQ?

In the immediately previous step, the number under the root is (1) less, so the length is \(\sqrt{19}\). Learn to read the sequence backward too.

What exam hint can help solve this Mathematics question?

ठीक पहले वाले चरण में वर्गमूल के अंदर की संख्या (1) कम होगी, इसलिए लंबाई \(\sqrt{19}\) है। क्रम को पीछे से पढ़ना भी सीखें।