Hey ! It's simple ,just remember that the intersecting lines make a cross, and they also don't make a right angle, but the perpendicular lines do make a right angle and also don't make a cross, I mean like they do but sometimes it's also like for example: line a is on the mid of line b so they factually don't make a cross . And that's my friend is now EASYYYYYYYYYY🎉🎉🎉🎉🎉🎉🎉🎉😊😊😊😊😊😊😊😊