Sum of Interior angle of polygon with 9 sides = 1260°
Each individual angle of polygon with 9 sides = 140°
Step-by-step explanation:
Step 1:
To find the sum of interior angle of any number of sides in a polygon is given by (n-2) [tex]*[/tex] 180°
And each angle is given by ((n-2) [tex]*[/tex] 180°)/ n
where n= Number of sides in a polygon
Step 2:
Here the number of sides is equal to 9.
∴ Interior sum of angle = (9-2) [tex]*[/tex] 180°
= 1260°
∴ Each individual angle of a polygon = ((9-2) [tex]*[/tex] 180°) / 9
= 140°
