Question

What universal set (*) would you propose for each of the following:

(i) The set of right triangles.

(ii) The set of isosceles triangles.

Answer 1

(i) Given set is the set of right triangles, so our proposed universal set is the set of all triangles.

(ii) Given set is the set of isosceles triangles, so our proposed universal set is the set of all triangles.