Question

Please help me with this

Answer 1

Answer:

Step-by-step explanation:

to make life easier, i'll give both angles letters

Angle ABC= x

Angle CBD= y

x= y(1/3)

x+y=180

now substitute

y(1/3) +y =180

y(4/3) =180

y(4/3) * (3/4)  = 180  *  (3/4)

y= 135

CBD is 135 degrees