the number of angles in a polygon times 90 and then minus 180.
angle sum of a parallelogram
360 degrees
find out your self
The sum of one angle is simply the measure of that angle.
the angle sum of a pentagon is 540.
You do not need to find. If it is a parallelogram, it must be 180 degrees.
To find the sum of the interior angle measures of a polygon with ( n ) sides, use the formula ( (n - 2) \times 180^\circ ). For the sum of the exterior angle measures of any polygon, regardless of the number of sides, it is always ( 360^\circ ). Thus, you can easily calculate the interior angles based on the number of sides while remembering that the exterior angles sum to a constant value.
With a protractor and the sum of the interior angles are 360 degrees.
The sum of the interior angles of any regular polygon of n sides is equal to 180(n - 2) degrees. Once you have the sum, divide by the number of sides to find an individual angle.
An angle sum is the sum (in degrees) of the particular angles you are measuring.
The sum of the exterior angles of a 2D planar polygon is always 360 degrees.
A pentagon has a total interior angle sum of 540 degrees. Since a pentagon has five sides, you can find the measure of each interior angle by dividing the total angle sum by the number of sides, resulting in an average interior angle of 108 degrees.