1. Chapter 7 Class 9 Triangles
  2. Serial order wise
  3. Examples

Example 9 - Chapter 7 Class 9 Triangles

Last updated at May 29, 2018 by

Example 9 - D is a point on side BC of ABC such that AD = AC - Side inequality

  1. Chapter 7 Class 9 Triangles
  2. Serial order wise

    3. Examples

    Theorems →

Transcript

Example 9 D is a point on side BC of ABC such that AD = AC (see figure). Show that AB > AD. AD = AC So, ACD = ADC Now, ADC is an exterior angle for ABD. ADC = ABD + BAD So, ADC > ABD ACD > ABD AB > AC AB > AD Hence proved

Chapter 7 Class 9 Triangles
Serial order wise

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.