Mathematics · Mensuration
4 मीटर आंतरिक त्रिज्या वाला एक 612 मीटर गहरा कुआं खोदा जाता है। निकाली गई मिट्टी को इसके चारों ओर समान रूप से फैलाकर 5 मीटर चौड़ा चबूतरा (embankment) बनाया जाता है। चबूतरे की ऊँचाई (मीटर में) क्या है?
- 12.2
- 22.1
- 31.6✓
- 41.8
सही उत्तर देखें
1.6
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