Respuesta :

sinday20063
i think it’s ccccccccc 139

Answer:

C: 139

Step-by-step explanation:

180 - 29 - 12 = 139.

Every triangle has a total of 180 degrees, therefore, subtract the degrees you do have, and find the missing one. Quadrilaterals have a total of 360 degrees and pentagons have 540 degrees.