Question

Can someone please help me with this problem

Answer 1

`m\angle ACB=m\angle ABC` (
`\Delta ABC` is isosceles)

`m\angle ACE=35^(\circ)` (angle subtraction)

`m\angle DEC=35^(\circ)` (
`\Delta DEC` is isosceles)

`\overline{DE} \parallel \overline{BC}` (converse of alternate interior angles theorem)