Question

if b is the mid point of ac and c is the mid point of bc where a,b,c,d lie on a straight line say why ab =cd?​

Answer 1

$\huge\boxed{\fcolorbox{black}{blue}{\fcolorbox{white}{pink}{Answer}}}$

Given, B is the midpoint of AC

AB=BC . (1)

and C is the midpoint of BD

BC=CD. (2)

i.e on adding (1) and (2)

ART

We get AB+BC=BC+CD

hence, AB=CD hence proved.