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6. A regular square pyramid has side of its base 20cm and height
45 cm is melted and recast into regular triangular pyramids of
equilateral base of side 10cm and height 10 / 3 cm. What are the
total numbers of regular triangular pyramid?
एक सम वर्गाकार पिरामिड जिसके आधार की भुजा 20 सेमी. तथा ऊँचाई 45 सेमी. है, को
पिघलाकर सम त्रिभुजाकार पिरामिड में ढाला जाता है जिसके समबाहु आधार की भुजा 10
सेमी. तथा ऊँचाई 10 / 3 सेमी. हैं | सम त्रिभुजाकार पिरामिडों की कुल संख्या क्या है ?
(A) 24
(B) 20
(C) 27
(D) 28

Hindi

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