NCERT Solutions Class 9 Mathematics Chapter 7 Triangles

Exercise 7.1 Q.1) In quadrilateral 𝐴𝐢𝐡𝐷, 𝐴𝐢 = 𝐴𝐷 and AB bisects ∠A (see Fig.). Show that π›₯𝐴𝐡𝐢 β‰… π›₯𝐴𝐡𝐷. What can you say about BC and BD? Sol.1) Given, AC = AD and AB bisects ∠𝐴 To prove, π›₯𝐴𝐡𝐢 β‰… π›₯𝐴𝐡𝐷 Proof, In π›₯𝐴𝐡𝐢 and π›₯𝐴𝐡𝐷, AB = AB (Common) AC = AD (Given) βˆ πΆπ΄π΅β€¦

CBSE Class 9 Mathematics Triangles Notes

  IX Mathematics Chapter 7: Triangles Chapter Notes Top Definitions 1. Two figures are congruent, if they are of the same shape and of the same size. 2. Two figures are similar, if they are of the same shape but of different size. 3. SAS congruence rule: Two…