I assume the question refers to the sum of the interior angles even though angles are not mentioned anywhere in the question.
The sum is 360 degrees.
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No, the interior angles of a triangle sum to 180o The interior angles of a quadrilateral sum to 360o.
360
NO
Any quadrilateral
Any quadrilateral may be split into two triangles; the sum of internal angles of any triangle is 180 degrees; so the sum of internal angles of a quadrilateral will then be the double of the sum of internal angles of a triangle: 180 x 2 = 360.