Explain BPT Theorem

Explanation

Basic Proportionality theorem(BPT) was introduced by a famous Greek Mathematician, Thales, hence it is also called Thales Theorem.
According to him, for any two equiangular triangles, the ratio of any two corresponding sides is always the same.


According to him if two triangles are similar to each other then,

i) Corresponding angles of both triangles are equal

ii) Corresponding sides of both the triangles are in proportion to each other