For each separate section reflect the colored portion of the quadrilateral over the given line and determine if it is a line of symmetry. [br]To do this [br]1) Click the 8th button from the left that looks like a line with a red and blue dot on either side[br]2) Choose the first option: reflect about the line[br]3) Click on the colored portion of each quadrilateral and then the potential line of symmetry[br]4) Repeat for each shape in the section[br]You can also move the points around in the original shape (the one in the top left) if you want to experiment if this is always the case.