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Kajal Aggarwal
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Asked: 2020-11-03T10:04:10+00:00 In:

ABC is an isosceles triangle with AB = AC. Draw AP⊥BC to show that Angle B = Angle C.

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NCERT Solutions for Class 9 Maths Chapter 7
Important NCERT Questions
Triangles
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 7.3
Page No:128
Questions No: 5

2020-2021cbsechapter 7class 9mathematicsncerttriangles
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    2. Best Answer
      ABC is an isosceles triangle with AB = AC. Draw AP⊥BC to show that Angle B = Angle C.

      In ΔABP and ΔACP,
      ∠APB = ∠APC [∵ Each 90°]
      AB = AC [∵ Given]
      AP = AP [∵ Common]
      Hence, ΔABP ≅ ΔACP [∵ RHS Congruency Rule]
      ∠B = ∠C [∵ CPCT]

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    3. 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-7/

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