Chapter 6 Class 10 Triangles

Serial order wise

Last updated at May 29, 2018 by Teachoo

Ex 6.2, 5 In figure, DE || OQ and DF || OR. Show that EF || QR. Given: DE II OQ and DF II OR To prove: EF II QR Proof: From (1) and (2) ππΉ/πΉπ =ππΈ/πΈπ In Ξ PQR, ππΉ/πΉπ =ππΈ/πΈπ i.e. Line EF divides the triangle PQR in the same ratio β΄ EF II QR Hence proved