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Question Number 62121 by ajfour last updated on 16/Jun/19 $${A}\:{cube}\:{of}\:{unit}\:{edge}\:{length}\: \\ $$$${is}\:{held}\:{before}\:{a}\:{plane}.\:{Prove}\:{that} \\ $$$${the}\:{sum}\:{of}\:{the}\:{squares}\:{of}\:{the} \\ $$$${projected}\:{lengths}\:{of}\:{edges}\:{of}\:{the}\:{cube} \\ $$$${on}\:{the}\:{plane}\:\left({irrespective}\:{of}\right. \\ $$$$\left.{the}\:{orientation}\:{of}\:{the}\:{cube}\right)\:{is}\:\mathrm{8}. \\ $$ Answered by mr…
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Question Number 62094 by Tawa1 last updated on 15/Jun/19 Commented by mr W last updated on 15/Jun/19 $${too}\:{less}\:{information}\:{to}\:{determine}\:\angle{C}! \\ $$$${with}\:{given}\:{conditions}\:{point}\:{C}\:{could} \\ $$$${be}\:{at}\:{any}\:{position}\:{on}\:{line}\:{AB}. \\ $$ Commented…
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Question Number 61994 by ajfour last updated on 13/Jun/19 Commented by ajfour last updated on 13/Jun/19 $${Find}\:{the}\:\boldsymbol{{r}}\:{of}\:{largest}\:{size}\:{sphere}\: \\ $$$${that}\:{can}\:{rest}\:{against}\:{the}\:{rim}\:{of} \\ $$$${cylinder}\:{on}\:{one}\:{side}\:{and}\:{the} \\ $$$${stick}\:{on}\:{the}\:{other}\:{side}. \\ $$…
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Question Number 61954 by lalitchand last updated on 12/Jun/19 Commented by lalitchand last updated on 12/Jun/19 $$\mathrm{question}\:\mathrm{3}\:\mathrm{plz}\:\mathrm{need}\:\mathrm{zolution} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 61952 by lalitchand last updated on 12/Jun/19 Commented by lalitchand last updated on 12/Jun/19 $$\mathrm{question}\:\mathrm{number}\:\mathrm{3}\:\mathrm{prove}\:\mathrm{that}\: \\ $$ Answered by MJS last updated on…