Respuesta :
Answer:
40° each
Step-by-step explanation:
The interior angles of a quadrilateral add up to 360°.
360° - 280° = 80°/2 = 40°
Answer:
40° each
Step-by-step explanation:
The interior angles of a quadrilateral add up to 360°.
360° - 280° = 80°/2 = 40°