Respuesta :

Answer:

Step-by-step explanation:

20 + 20 + x = 180

x = 140

Answer:

140° ?

Step-by-step explanation:

Since Angle CAD is 20°, and CEA is 180°. Angle CED has to equal to 20°. I added angle CAD to CED and got 40°. Then I subtracted 40 from 180 and got 140 °.

Hope this Helps!!!