Can someone please help???

Question

asked Apr 18, 2021 84.0k views

1 Answer

Jeffrey Fulton · Answer 1 · 2021-04-22T11:59:30+0000

Proof (reasons are given in brackets):

Consider
$\triangle ABC$ ,
$\triangle EDC$ :

$\overline B \overline C = \overline D \overline C$ (given)

$\angle BCA = \angle DCE$ (vertically opposite angles are equal)

$\overline A \overline C = \overline E \overline C$ (given)

$\therefore \triangle ABC \cong \triangle EDC$ (SAS)

Hope this helps :)