Well all u have to do is 156%*70= 109.2 so N= 109.2
Answer:
156°
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 15 , then
sum = 180° × 13 = 2340°
interior angle =
=
= 156°
42 divided by 3 is 14
42 over 3 is a whole number of 14