Triangle Congruence Proofs Worksheet With Answers. A worksheet, in the word’s original meaning, is a sheet of paper where one performs work. It is a printed page that a child completes with a writing instrument. No additional materials are needed. It’s”a sheet of paper where workouts, working time, special instructions, etc. are listed. A piece or scrap of paper on which problems, ideas, or the like, are set down in tentative form.” In schooling, a worksheet could have questions for pupils and areas to record responses. In accounting, a worksheet is, or was, a sheet of ruled paper with rows and columns on which an accountant could record information or perform calculations.