Which statement is true? all quadrilaterals are parallelograms because they have 4 sides. all trapezoids are parallelograms because they have 1 pair of parallel sides. all squares are parallelograms because they have 2 pairs of parallel sides. all polygons are parallelograms because they have straight lines and closed sides.

In geometry, a parallelogram is defined as a simple quadrilateral with two pairs of parallel sides, with opposite sides are of equal length and the opposite angles of equal measure. From these descriptions alone, one statement is true-- All squares are parallelograms because they have 2 pairs of parallel sides.

I think it is 53 because 12+6+6+2+17+11= 53