Which statement must be true to prove that segment DE is parallel to segment CA?

1 : DC = 5 : EA

4 : DC = 3 : EA

1 : EA = 5 : DC

4 : EA = 3 : DC

I don't get this.

Question

Which statement must be true to prove that segment DE is parallel to segment CA?

1 : DC = 5 : EA

4 : DC = 3 : EA

1 : EA = 5 : DC

4 : EA = 3 : DC 

I don't get this.

anonymous · Answer

attachment

anonymous · Answer

@psi9epsilon and @PaxPolaris I really don't  get this.

anonymous · Answer

@sarahseburn Can you help me?

anonymous · Answer

hint

20/ DC = 15 / EA,

anonymous · Answer

Also 20/bc=15/ab,

use these relations, i have given you lots of clues to start

anonymous · Answer

But what am I looking for/doing?

anonymous · Answer

you need to find a ratio that matches the given options, the ratio willbe help you identify the condition why the lines may be parallel

also if you should know about similarity of triangles, thats where these relations come from

anonymous · Answer

Oh, so the answer would come out to B.

anonymous · Answer

Right?

anonymous · Answer

aha

anonymous · Answer

sounds good ? i m taking off here
good luck

anonymous · Answer

Oh man...okay thanks, bye.