Each square on Olivia's chessboard is 21 square centimeters. A chessboard has 8 squares on each side. To the nearest tenth, what is the width of Olivia's chessboard? Olivia's chessboard is

In the picture below, line pq is parallel to line rs, and the lines are cut by a transversal, line tu. the transversal is not perpendicular to the parallel lines. note: figure is not drawn to scale. which of the following are congruent angles?