1. find m angle a. the diagram is not to scale. a 107 b 117 c 63 d 73 2. find the value of x and y for which abcd must be a parallelogram. the diagram is not drawn to scale a x= 10 y = 38 b x= 10 y = 21 c x= 10 y = 7 d x=7 y = 10 3.abcd is a parallelogram. the diagram is not to scale. if m angle dab= 115 then m angle bcd = a 125 b 65 c 75 d 115 4. what is the missing reason in proof given: abd with diagonal be prove: abd=∆ cdb