C-16-Q164: With outer $10\times 9\times 7$ and inner surface $262$, the wall thic…

C-16-Q164: With outer $10\times 9\times 7$ and inner surface $262$, the wall thic… | প্রশ্ন করি

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With outer 10×9×710\times 9\times 710×9×7 and inner surface 262262262, the wall thickness is —