how to find the interior angle and exterior angle of any quadrilateral ?
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The sum of the measures of the interior angles of a polygon with n sides is (n – 2)180.
The measure of each interior angle of an equiangular n-gon is

If you count one exterior angle at each vertex, the sum of the measures of the exterior angles of a polygon is always 360°.

The measure of each interior angle of an equiangular n-gon is

If you count one exterior angle at each vertex, the sum of the measures of the exterior angles of a polygon is always 360°.

ravir67r:
how to find each angle
Divide the quadrilateral into two triangles. You will need to split two of the angles in half when you divide the quadrilateral. For example if you had an angle of 60 degrees it will become 30 degrees on both sides of the dividing line.
Add the sum of the angles for the triangle with the missing angle. For example if one of the quadrilateral's triangles had the angles 30 and 50 degrees, you would add them together to get 80 degrees (30 + 50 = 80).
Add the sum of the angles for the triangle with the missing angle. For example if one of the quadrilateral's triangles had the angles 30 and 50 degrees, you would add them together to get 80 degrees (30 + 50 = 80).
OK thank you
its ok
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