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There are a number of ways of proving that the sum of the interior angles of a polygon, which has n sides, is (n - 2)*180 degrees.

In the case of a quadrangle, n = 2 and so the angle sum is (4 - 2)*180 = 2/180 = 360 deg.

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Q: Why is the sum of the angles in a quadrangle 360?
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Related questions

The sum of the angles in a quadrangle is?

360 degrees


How many degrees in a quadrangle?

The sum of the angles in a quadrangle is 360 degrees.


How do you find the angles of a quadrangle without a protractor that is not a square?

i don't know it this helps, but the sum of the angles in a quadrangle is 360 !


What is the sum of a quadrangle called?

If the question is, what is the sum of the angles of a quadrangle, then the answer is 360 degrees.Quadrangle is another name for quadrilateral. A quadrangle alone cannot assume a sum of any sort, but the length of its sides or the measurement of its angles can.


How do find the sum of the angles in a quadrangle with each side different lengths not using a protractor?

The sum of the angles in a quadrangle is 360 degrees, whatever the side lengths.


What is the sum of the angles in a quadrangle?

If a circle (equalling 360 degrees) is cut into four pieces, then rearranged a bit, it will become to look like one quadrangle or another. That is why a quadrangle, no matter HOW messed up, will still equal 360 degrees when its angles are added up.


The sum of a quadrangle?

360


How do you find the sum of angels in a quadrangle?

The sum of all four angles inside any 4-sided figure is always 360 degrees.


What is the sum of both angles 180?

If both angles are 180, their sum is 360!If both angles are 180, their sum is 360!If both angles are 180, their sum is 360!If both angles are 180, their sum is 360!


How do you find the sum of the angles in a quadrangle without using a protractor?

Assuming it is a four sided closed figure, the sum of the angles is always 360 degrees. For example, a rectangle has four sides with each angle equal to 90 degrees. If you add each of the angles together you come up with the sum of the angles totaling 360 degress.


What is the sum of angles in a rhombus?

The sum of the interior angles is 360 and the sum of the exteriors is 360 also.


What is the sum of the interior angle measures in a quadrangle?

360 degrees.