In the figure (not drawn to scale), EFA is a right-angled triangle with ∠EFA = 90° and FGB is an equilateral triangle, find y - 2x.
  
 	
(a)	2	
(b)	8	
(c)	17	
(d)	20
Please give answer.
In the figure (not drawn to scale), EFA is a right-angled triangle with ∠EFA = 90° and FGB is an equilateral triangle, find y - 2x.
  
 	
(a)	2	
(b)	8	
(c)	17	
(d)	20