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Ishita Katyal
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Asked: 2020-11-03T09:54:16+00:00 In:

D and E are points on sides AB and AC respectively of Δ ABC such that ar (DBC) = ar (EBC). Prove that DE || BC.

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NCERT Solutions for Class 9 Maths Chapter 9
Important NCERT Questions
Areas of Parallelograms and Triangles
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 9.3
Page No:163
Questions No:7

2020-2021areas of parallelograms and trianglescbsechapter 9class 9mathematicsncert
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    2 Answers

    1. Get Hindi Medium and English Medium NCERT Solution for Class 9 Maths to download.
      Please follow the link to visit website for first and second term exams solutions.
      https://www.tiwariacademy.com/ncert-solutions/class-9/maths/chapter-9/

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    2. Best Answer
      D and E are points on sides AB and AC respectively of Δ ABC such that ar (DBC) = ar (EBC). Prove that DE || BC.

      ΔDBC and ΔEBC are on the same base BC and ar (DBC) = ar(EBC).
      Therefore, DE ∥ BC
      [∵ Triangles on the same base (or equal bases) and having equal areas lie between the same parallels.]

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