Question

If LM//CB and DF//AE. Prove that BF/FE=BE/EC​

Answer 1

Answer:

ਠਡਫਦਫਫਫਫਫਫਫਫਛਪਪ੍ਦੜਛਖਡਰਪੲਡਲਡ

Step-by-step explanation:

ਠਧਠਜਪਧਘਜਬਪੲਜਤ੪ਘਰਡਘਸਫਘਲਫਏਆਏਊ

Answer 2

Step-by-step explanation:

BASIC PROPORTIONALITY THEOREM (BPT) : If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points then the other two sides are divided in the same ratio. That is also known as Thales theorem.

SOLUTION:

GIVEN:

In ∆BAC, DE || AC

BE/EC = BD/DA………..(1)

[ By Thales theorem(BPT)]

In ∆BAE, DF || AE  (GIVEN)

BF/FE = BD/DA………..(2)

[ By Thales theorem(BPT)]

(From eq 1 and 2)

BF/FE = BE/EC

FE/BF = EC/BE    [reciprocal the terms]

Hence proved.

HOPE THIS WILL HELP YOU.....