Theorem 6.4 Maths Class 10 NCERT Theorem 6.4 If the corresponding sides of two triangles are in equal ratio then
two triangles are similar triangles if corresponding angles of two triangles are equal. AAA similarity.
If a line dives the two sides of the triangle in equal ratio, the line is parallel to the third side of the triangle.
A line parallel to a side of the triangle divides the other sides in equal ratio.