Congruent Triangles Worksheet #1 Answer Key. A worksheet, in the word’s original meaning, can be a sheet of paper on which one performs work. It’s a printed page a child finishes using a writing instrument. No additional materials are necessary. It’s”a sheet of paper where work schedules, working time, special instructions, etc. are recorded. A bit or scrap of paper about which problems, thoughts, or the like, are set down in tentative form.” In education, a worksheet could have concerns for students and areas to record responses. In accounting, a worksheet is, or has been, a sheet of paper with rows and columns on which an accountant may record data or perform calculations.