Answer:
The angles labeled 1, 2, 3, 4, and 5 in the pentagon below are all interior angles. Angles 3, 4, 5, and 6 in the second example below are all interior angles as well (parallel lines cut by a transversal). Note: The sum of the interior angles of an n-gon is given by the formula (n – 2)·180°.
Step-by-step explanation:
Triangle 3 180°
Quadrilateral 4 360°
Pentagon 5 540°
Hexagon 6 720°
Hope it helps
