In the diagram, ABCD is a parallelogram. The diagonals of the parallelogram intersect at point T. D 16 If m<ABC =3y+5 and m<ADC =5y-45, what is m<BCD

Step-by-step explanation:
m<ABC =3y+5
m<ADC =5y-45
3y+5 = 5y-45
2y = 50
y = 25
.............
m<BCD = 180 - 80 = 100°