Respuesta :

Answer:

23

Step-by-step explanation:

90-67

Answer:

23°

Step-by-step explanation:

∠AEF is equal to 90° because on the opposite side of the line AB is also 90°; a line is equal to 180°

To find ∠AEC, you have to subtract 67 from 90 to get the other number. When you do, you get 23°