Question

In △ABC m∠CAB = 40° and m∠ABC = 60°. Circle, going through points A and C, intersects sides AB and BC in points D and E respectively. Find all angles in quadrilateral ACED.

Answer 1

80, 100

Explanation:

180 - (40+60) =

80

That means one of the angles is 80, making an other angle 180-80 = 100 degrees