NCERT Solutions for Class 10 Maths Chapter 6 Exercise 6.2

NCERT Solutions for Class 10 Maths Chapter 6 Exercise 6.2 Triangles in English & Hindi Medium free to download in PDF updated for session 2020-21. All the questions are based on BPT or its converse. A few questions can be solved directly by similarity theorems, but both the methods should be known as some time it is asked to do with Thales theorem only.

Exercise 6.2 is based on Thales Theorem (Basic Proportionality Theorem – BPT) and its converse. In Questions 1 and 2, we have to simply find the ratio of sides and apply the converse of BPT. Question 3 and 4 are direct application of Thales theorem. In Question 5 and 6, first apply BPT and then converse to prove the required things. Similarly questions 7, 8, 9 and 10 can be solved by using Thales as well as its converse. Question number 10 can be solved on the basis of similarity also, which will we study in Exercise 6.3.

Basic Proportionality Theorem: If a line is drawn parallel to one side of a triangle to intersect the other sides in distinct points, the other two sides are divided in the same ratio. [BPT is also known as Thales Theorem. The converse of the Thales theorem is also important to solve the questions.]

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