Question

8. Which calculation would you choose as the universal mass for the following statements: (i) The mass of right triangles (ii) The mass of isosceles triangles​

Answer 1

(i) For the set of right triangles, the universal set can be the set of triangles or the set of polygons.

(ii) For the set of isosceles triangles, the universal set can be the set of triangles or the set of polygons or the set of two-dimensional figures.