Question

If triangle ABC is ~ to triangle EDF and triangle ABC is not similar to triangle DEF,then which of the following is not true?Single choice.​

Answer 1

Answer:

ΔABC∼ΔEDF [Given]  

Corresponding sides of two similar triangles are proportional  

ED

AB

​  

=  

EF

AC

​  

=  

DF

BC

​  

  ...(i)  

So , every statement except (C) will be true if we take any equal ratios from (i) and cross multiply that equal ratios with each other .  

(A) BC⋅EF=AC⋅FD True  

(B) AB⋅EF=AC⋅DE True  

(C) BC⋅DE=AB⋅EF False  

(D) BC⋅DE=AB⋅FD True