Answer:
23 sides
Step-by-step explanation:
The sum S of the interior angles of an n sided polygon is given as
S = (n - 2)180°
Where S is the sum of the interior angles and n is the number of sides.
Given that the sum of the interior angles is 3780° then
3780° = (n - 2)180
Divide both sides of the equation by 180
21 = n - 2
n = 21 + 2
= 23
The polygon has 23 sides
