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If A B C and DEF are two triangles such ...

If `A B C` and DEF are two triangles such that ` A B C\ ~= F D E\ a n d\ A B=5c m ,\ /_B=40^0\ a n d\ /_A=80^0dot` Then, which of the following is true? `D F=5c m ,\ /_F=60^0` (b) `D E=5c m ,\ /_E=60^0` `D F=5\ c m ,\ /_E=60^0` (d) `D E=5c m ,\ /_D=40^0`

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