Because angleCBD+angleBDC+angleC=180
so angleCBD+angleBDC=180-angleC=180-82=98
because BC=DC
so angleCBD=angleBDC
so 2 angleCDB=98
so angleCDB=49
so y=29
by Joy Xu,紫馨雪汐
Answer:
A
Step-by-step explanation:
if you subtract 54 from 180 you would get 126
The answer is 6. I know that because I solved the question and I got 6 I'm positive its 6. Hope this helps.
The third and fourth ones are correct