The sum of all the angles in a quadrilateral always add up to 360 degrees. Hope that helps!!!!
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In a quadrilateral the sum of all four angles equals 360º.
There's no such thing as a "triangle quadrilateral".The sum of the interior angles of a triangle is 180 degrees,and for a quadrilateral it's 360 degrees.
360
Interior angles of any quadrilateral always total 360o.
This result follows from the theorem that the sum of the angles of a triangle is 180 degrees. Drawing a diagonal in the quadrilateral splits it into two triangles and the angles of the triangles together combine to form the angles of the quadrilateral.