The interior angles of a hexagon add up to 720 degrees. In the diagram, it shows that A and B are the same angles (the small lines indicate this). Using this information, we can add up all of the other angles ( 140+95+161+135=531 ) and then subtract it from 720. This will equal 189. We now divide this by two to get both of the angles (189/2=94.5). So the answer is A=94.5 B=94.5