In the diagram ABCD EFCH A Which angle in EFCH is congruent
     In the diagram. ABCD - EFCH. (A) Which angle in EFCH is congruent to  
  
  Solution
ABCD~EFGH
A. \'F\' angle is congruent to \'B\'
B.Scaling factor = 12/20=3/5
C. 12/30=x/15 =>x=9
D. 15/Y=12/20
=>Y= 25
E.perimeter of EFGH= 85
Hence perimeter of ABCD=85*3/5=51
F. If AC= 18
Then EG= 18*5/3=30.

