Answer:
a=40 degrees
b=50 degrees
c=115 degrees
Step-by-step explanation:
a is found by the 40 degrees that has been given adjacent to the angle. b is found by understanding that a is 40 and the right angle is 90, leaving the remaining angle to be 50 since triangles have a total of 180 degrees. c is found by understanding that a straight line being 180 degrees minus 65 degrees equals 115.
