question_answer 1)

                Given here are some figures:                   Classify each of them on the basis of the following: (a) Simple curve (6) Simple closed curve (c) Polygon (d) Convex polygon (e) Concave polygon.

Answer:

                (a) \[\leftrightarrow \] 1, 2, 5, 6, 7 (b) \[\leftrightarrow \] 1, 2, 5, 6, 7 (c) \[\leftrightarrow \] 1, 2, 4 (d) \[\leftrightarrow \] 2 (e) \[\leftrightarrow \] 1, 4.