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in Mensuration by (20 points)
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16 कांच के गोले , जिनकी त्रिज्या 2 सेमी हैं , को एक घनाकार बक्से में पैक किए जाता हैं जिसका आंतरिक आयाम 16 सेमी × 8 सेमी × 8 सेमी है और तब बक्से को पानी से भर दिया जाता है। बक्से में भरे पानी का आयतन ज्ञात कीजिए।

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by (45.4k points)

r = 2 cm

\(\therefore\) volume of 1 sphere = \(\frac43\)πr3 = \(\frac43\)π x 23 = \(\frac{32\pi}3\) cm3

\(\therefore\) volume of 16 spheres = 16 x \(\frac{32}3\)π  cm3 = \(\frac{512\pi}3\) cm3

Dimensions of cuboidal box are 16 cm, 8 cm and 8 cm.

\(\therefore\) volume of cuboid = lbb = 16 x 8 x 8 = 1024 cm3

volume of water in box = volume of box - volume of 16 spheres

 = (1024 - \(\frac{512\pi}3\)) cm3

 = (1024 - 536.16) cm3

 = 487.84 cm3

by (20 points)
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