Question
Download Solution PDFరెండు వృత్తాల చుట్టుకొలత వరుసగా 198 సెం.మీ మరియు 352 సెం.మీ. వాటి వ్యాసార్థాల మధ్య భేదం ఏమిటి?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFఇచ్చిన దత్తాంశం:
రెండు వృత్తాల చుట్టుకొలత వరుసగా 198 సెం.మీ మరియు 352 సెం.మీ.
ఉపయోగించిన భావన:
రెండు వృత్తాల చుట్టుకొలత = 2πr
ఇక్కడ, r = వ్యాసార్థం
లెక్కింపు:
రెండు వృత్తాల వ్యాసార్థం r1 & r2గా అనుకొనిన
ప్రశ్న ప్రకారం,
2πr2 - 2πr1 = 352 - 198
⇒ 2π(r2 - r1) = 154
⇒ π(r2 - r1) = 77
⇒ r2 - r1 = 77 × 7/22
⇒ r2 - r1 = 49/2
⇒ r2 - r1 = 24.5
∴ అవసరమైన సమాధానం 24.5 సెం.మీ
Last updated on Jun 13, 2025
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