The angle is 90° degrees.
Creo que la respuesta es C. No soy bueno con el inglés, pero eso es lo que pienso. Lo siento si está mal.
Answer:
D
Step-by-step explanation:
The ratio of corresponding sides are equal, that is
= 
It would be c because you would subtract 13 on both side and the equation would be x - 13 = 16