Avijit Posted April 30, 2020 Report Share Posted April 30, 2020 It is a square and please help to provide geometric solution 1 Quote Link to comment Share on other sites More sharing options...
0 harey Posted April 30, 2020 Report Share Posted April 30, 2020 (edited) Spoiler Label the square ABCD clockwise starting at the upper left corner. Put Y next to the angle of 70 (I will use both X and Y as angles and as points). BAY=180-90-70=20 DAX=90-20-45=25 Rotate ABY over AY. Rotate ADX over AX. ABY and ADX will exactly cover AXY - proof is left to the reader as exercise. -> X=180-45--70=65 Edited April 30, 2020 by harey Corrected a germanism. 1 Quote Link to comment Share on other sites More sharing options...
0 rocdocmac Posted May 1, 2020 Report Share Posted May 1, 2020 (edited) The long way ... Spoiler Edited May 1, 2020 by rocdocmac Quote Link to comment Share on other sites More sharing options...
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Avijit
It is a square and please help to provide geometric solution
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