The angles of B and C would be 65 degrees because the total of all angles in a triangle are 180 degrees, minus 50 is 130, and if B = C then you'd just have to divide 130 by two giving you 65 degrees.
B and C are 65. All triangles have to equal 180. So since A=50 you subtract 50 by 180 and get 130 then since their are 2 sides left you divide by 2 and get 65. Add 65+65+50 and you get 180
