Triangles: A plane figure bounded by three lines in a plane is called a triangle.
Similar Triangles: Two triangles are said to be similar if
(i)Their corresponding angles are equal and
(ii) Their corresponding sides are proportional.
- All congruent triangles are similar but the similar triangles need not be congruent.
- Two polygons of the same numbers of sides are similar, if:
(ii) Their corresponding sides are in the same ratio.
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