WHAT I HAVE LEARNED Fill in the blanks with the appropriate words to summarize our lesson. 1) A ________ has no length, width, or thickness and denotes location. 2) ________ is an undefined term that has length and but no width. 3) A plane has length and width but no ________. 4) When points are on the same ________, they are called coplanar points. 5) When points are on the same line, they are called ________. 6) Every line contains at least ________.7) Every plane contains at least ________ points.​