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JEE MAIN 2026 Crash Course
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Take `pi=22/7`
किसी अर्धवृत्त का परिमाप उसके क्षेत्रफल के बराबर है। व्यास की लम्बाई ज्ञात करें?
A. `3 3/11` metres
B. `5 6/11` metres
C. `6 6/11` metres
D. `6 6/11` metres

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Correct Answer - C
`2r+pir=1/2pir^(2)`
`implies r(2+pi)=1/2pir^(2)`
`implies 4+2pi=pir`
`impliesr=4/(pi)+2`
`implies` व्‍यास `=2(4/(pi)+2)`
`=6 6/11m`

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