Answer:
D and C
Step-by-step explanation:
I don't really know if my answers are even correct but I did some research on them. I don't want to waste your time --or mine.
 
        
                    
             
        
        
        
Answer: y = 90°
Step-by-step explanation:
55.30786941 = sin-1 (148/180)   round to 55.3°  angle x
34.69213059 = cos-1 (148/180) . round to 34.7°  "angle z" at right
34.7 +55.3 = 90
Sum of All angles of the triangle = 180°  180 -90 = 90
If angle x is 55.7 and angle z is 34.7°  Angle y must be 90°
Ratio of inscribed arcs = ratio of chord to diameter
 
        
             
        
        
        
Answer:
1) a , b , c , e are ans....
2) a.F b.T c.F d.T