9th mathematics NCERT exercise questions with answers, Mathematics

Triangles – Exercise 7.2 – Class IX

In an isosceles triangle ABC, with AB = AC, the bisectors of ∠ B and ∠ C intersect each other at O. Join A to O. Show that : (i) OB = OC (ii) AO bisects ∠ A Solution: AB = AC such that ∠ABC  =  ∠ACB [angles opposite to equal sides are equal ]… Continue reading Triangles – Exercise 7.2 – Class IX