Its interior angles add up to 1800 degrees and its exterior angles add up to 360 degrees
It means the sum of the angle measurements.
It is: 1080 - 835 = 245 degrees
The sum of the interior angles is 1,800 degrees for any 12-agon,no matter how it's shaped.
If it's a triangle then: 180-sum of known angles = unknown angle
The sum of one angle is simply the measure of that angle.
angle sum of a parallelogram
the angle sum of a pentagon is 540.
An angle sum is the sum (in degrees) of the particular angles you are measuring.
One way is to use a protractor. There are others
The usm of the exterior angles of any polygon is 360 degrees. It does not matter how many sides it has, not whether it is regular.
It is the measure of the angle!
The sum of an angle is a poitless concept: it is simply the measure of the angle and does not add any information.The sum of more than one angles refers to the sum of their values.