Respuesta :

meetdhruv23

Answer:

55

Step-by-step explanation:

As AB and DE are parrallel.

Therefore:

EDC = ABC (alternative angles on parallel lines)

55 = ABC

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jayd01

Answer :

55°

Detailed explanation:

The triangles are isosceles (having two sides of equal length and angle).

Hence solve for angle DCE

Angle DCE= 180°-(55°+55°)

=70°

As vertically opposite angles are equal. Thus,

angle ACB=70°.

Hence 180°-70°=110°

As the angles in an isosceles triangle are equal hence;

110°÷2=55°

Hence angle ABC is 55°

Hope this is has been clearly explained!

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