Im not sure but I think u have to add or multiply
Step-by-step explanation:
117+114= 231
360-231= 129
Now find two numbers that add up to 129
The sum of all interior angles in a polygon is
180(n - 2), where n = the number of sides in the polygon.
now, notice this figure above, it has 5 sides, namely is a PENTAgon, so the sum of all its interior angles is 180( 5 - 2), or 540, therefore