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Basic Proportionality Theorem Notes - Class 10

Class 10: Basic Proportionality Theorem Notes - Class 10

The document Basic Proportionality Theorem Notes - Class 10 is a part of Class 10 category.
All you need of Class 10 at this link: Class 10

Prove that [basic proportional theorem]?
Ref: https://edurev.in/question/617932/Prove-that-basic-proportional-theorem-

Basic Proportionality Theorem(Thales Theorem) -  Given - In triangle ABC,  DE is parallel to BC. DE bisects AB at D and AC at E.

Construction - Join BE and CD and draw EF is perpendicular to AB and DG is perpendicular to AC.

Proof -

As,  EF is perpendicular to AB, EF is the height of tr's ADE and DBE. The document Basic Proportionality Theorem Notes - Class 10 is a part of Class 10 category.
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