यदि \(\sqrt{a}\) संख्या रेखा पर ठीक (4.5) पर है तो (a) का मान क्या होगा?
If \(\sqrt{a}\) is exactly at (4.5) on the number line, what will be the value of (a)?
Explanation opens after your attempt
C. (20.25)
Concept
If \(\sqrt{a}=4.5\), then (a=(4.5)2=20.25). Square both sides to remove the square root.
Why this answer is correct
The correct answer is C. (20.25). If \(\sqrt{a}=4.5\), then (a=(4.5)2=20.25). Square both sides to remove the square root.
Exam Tip
\(\sqrt{a}=4.5\) होने पर (a=(4.5)2=20.25) है। वर्गमूल हटाने के लिए वर्ग करें।
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