7. In a squared sheet, draw two triangles of equal areas such that
(i) the triangles are congruent.
(ii) the triangles are not congruent.
What can you say about their perimeters?
When two triangles are congruent, the corresponding parts are exactly identical so they have the same area and perimeter.
While the triangles are not congruent but have the same area, then the perimeter of both triangles are not equal.