Question

list all all important theorems on triangles chapter for class 10

Answer 1

Answer:

1. All congruent figures are similar, but it doesn’t mean that all similar figures are congruent.
2. Two polygons with the same number of sides are similar if their corresponding angles are equal, and their corresponding sides are in the same ratio.
3. Two triangles are similar if their corresponding angles are equal and corresponding sides are in the same ratio.
4. In two triangles, if the corresponding angles are equal and corresponding sides are in the same ratio then the two triangles are similar.
5. In two triangles, if the sides of any one of the triangles are proportional to the sides of the other triangle, then their corresponding angles are equal, and the two triangles are similar.