The line segments of the polygon are called as sides or edges. The formula used to calculate the sum of interior angles, interior angles of the polygon & Exterior angle of the polygon is
Sum of interior angles = (m - 2) x 180
Let m be the number of sides,
Interior angles of the polygon = [(m - 2) x 180] / m
Exterior angle of the polygon = 360 / m
where,
m - No.of Side for the polygon
Example:
Calculate the sum of interior angles, interior angles of the polygon & Exterior angle of the polygon whose given Number of sides are 5.
Solution:
substitute the given data in the above formula,
Sum of interior angles = (m - 2) x 180
= (5 - 2) x 180
= 540
Interior angles of the polygon = [(m - 2) x 180] / m
= [(5 - 2) x 180] / 5
= 540 / 5
= 108
Exterior angle of the polygon = 360 / m
= 360 / 5
= 72
When you try such calculations on your own, this polygon angle calculator can be used to verify your results of calculations.