Chapter 1: Sets
Chapter 1: Sets
Exercise
Question
Question: 7 (i)
37 / 42
37 / 42
What universal set(s) would you propose for each of the following?
(i) The set of right triangles
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Answer
1
Identify one or more universal sets that contain all triangles.
Possible Answers: (a). The set of all triangles, (b). The set of all polygons.
Reason: Every right triangle is a triangle as well as a polygon. Therefore, the set of all triangles and the set of all polygons contain all right triangles and can serve as universal sets. This shows that a universal set is not unique.