Chapter 1 – Similarity
Very Important Theorem For Board Exam
Theorem 1 – Ratio of areas of two triangles
The ratio of the areas of two triangles is equal to the ratio of the products of their bases and corresponding heights.
Theorem 2 – Basic proportionality theorem
If a line parallel to a side of a triangle intersects the remaining sides in two distinct points, then the line divides the sides in the same proportion.