Mathematics · Mensuration - Cube
क्रमशः 3 सेमी, 4 सेमी और 5 सेमी भुजाओं वाले तीन धातु के घनों को पिघलाकर एक नया ठोस घन बनाया जाता है। नए घन का पार्श्व पृष्ठीय क्षेत्रफल (lateral surface area) वर्ग सेमी में कितना होगा?
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