Question

If DE is internal Bisector of andle D then find x and y​

Answer 1

Answer:

I don't know man so please ref text book

Answer 2

Answer:

As DE is the angle bisector of angle FDC

therefore Angle FDE =angle EDC=25°

I.e. angle Y= 25°

For Triangle ABC

angle ACD = angle BAC + angle CBA ( exterior angle property)

angle ACD=70°+35°

= 105°

similarly, for triangle ECD

angle FED = angle ECD + angle CDE (exterior angle property )

angle FED = 25°+ 105°

= 130°

Similarly, For triangle FED

angle GFD= angle EDF + angle FED ( angle sum properly of a triangle)

angle GFD = 25° + 130 °

= 155°

I . e angle x = 155°

Hope ,It has helped you