m. Write the word TRUE if the sentence is correct,FALSE if it is wrong. 26. A circle is an example of a polygon. 27. A polygon is an open plane figure made up of line segments that are joined together, 28. A rectangle is a quadrilateral. 29. The number with the percent (%) symbol is the rate. 30. Two polygons are congruent if they match exactly when one figure is placed on top of the other.​