Q. 7 B5.0( 1 Vote )

In ΔABC, M , N such that || ,……….is not true.
A. AN MB = AM NC

B. AM MB = AN NC

C. AB AN = AM AC

D. AB NC = AC MB

Answer :

We have the diagram as



Given: In ∆ABC, MN BC.


By property of triangles, we can say that


,


&



Cross multiplication of the above equations,


AM × NC = AN × MB


Or AM . NC = AN . MB is true.


AM × AC = AN × AB


Or AM . AC = AN . AB is true.


MB × AC = NC × AB


Or MB . AC = NC . AB is true.


So, AM . MB = AN . NC is not true.


Thus, option (b) is correct.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Basic Proportionality Theorem42 mins
Quiz | Criterion of Similarity of Triangle45 mins
Champ Quiz | Thales Theorem49 mins
NCERT | Strong Your Basics of Triangles39 mins
RD Sharma | Imp. Qs From Triangles41 mins
R.D Sharma | Solve Exercise -4.2 and 4.3FREE Class
How to Ace Maths in NTSE 2020?36 mins
R.D Sharma | Solve Exercise-4.545 mins
NCERT | Basic Proportionality Theorem22 mins
RD Sharma | Imp Qs Discussion- Triangles43 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses
RELATED QUESTIONS :