Question 648319
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
if angle e and angle f are supplimentary 
angle e is 54 more then angle f
Question states***
  e + f = 180    ||| {{{e = f + 54}}}  (substitute for e)
(f+ 54) + f  = 180°  
    2f = 126
     f = 63°    and e = 117° 
and..
 e + f = 63° + 117°  = 180°