Question

1. In the adjoining figure :
AB || CD and EF || AB.
(1) Is EF || DC ? If so why?​

Answer 1

Answer:

Given,

AB || CD and AB || EF.

THEREFORE,

CD || EF ( because things which are equal to one another are equal to the same thing.)

Step-by-step explanation:

Please follow the Euclid postulate and axioms.

PLEASE FOLLOW ME

Answer 2

Answer:

given:AB||CD AND EF||AB

PROOF:EF||DC

Step-by-step explanation:

YES, BECAUSE AB||CD AND EF||AB

THEN,EF||DC( PARALLEL LINES ARE EQUAL TO EACH OTHER).

I HOPE IT'S ENOUGH .