#### Chapter 10 Congruent Triangles R.D. Sharma Solutions for Class 9th Exercise 10.2

**Exercise 10.2**

1.Â In Fig. 10.40, it is given that RT = TS, âˆ 1 = 2âˆ 2 and âˆ 4 = 2âˆ 3. Prove that Î”RBT â‰…Î”SAT.

**Solution**

2. Two lines AB and CD intersect at O such that BC is equal and parallel to AD. Prove that the lines AB and CD bisect at O.

**Solution**

3.Â BD and CE are bisectors of âˆ B and âˆ C of an isosceles Î”ABC with AB = AC. Prove that BD

**Â =**Â CE.

**Solution**