the sum of all angles of a parallelo ??gram is
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the sum of all angles of a parallelo ??gram is
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The sum of all angles of a parallelogram is 360°.
Answer:
Since the sum of the interior angles of any triangle is 180° and there are two triangles in a quadrilateral, the sum of the angles for each quadrilateral is 360°. Let's start by examining the group of quadrilaterals that have two pairs of parallel sides.