lines vocabulary names english geometric geometry math 7esl words terms list language esl mathematical their article choose board
lines types line vertical down straight math different definition parallel
line horizontal vertical diagonal straight parallel thick zigzag definition american english across dotted pattern lines oxfordlearnersdictionaries wavy going adjective down
vertical english definition adjective lines oxfordlearnersdictionaries enlarge pronunciation
lines kinds line straight ppt presentation powerpoint zigzag thin wavy broken loopy curvy directionality thick