Respuesta :

crissz67

Answer:

20.5°

Step-by-step explanation:

A=B(corresponding angles are equal)

2x=x+20.5

x=20.5

or

B=D(alternate angles)

D=11B

D=11(x+20.5)=11x+225.5

B=D

x+20.5=11x+225.5

10x= -205

x= -20.5

since angles can not be negative x= 20.5