Respuesta :

Answer:

56

Step-by-step explanation:

because the triangle is 180 degrees

profparis

Answer:

x = 56°

Step-by-step explanation:

Hello!

All angles in a triangle add up to 180°

84 + 40 = 124

180 - 124 = 56°

If you need further explanation, let me know!

- profparis