Answer:
isosceles triangle
Explanation:
line CB is the transversal for the two parallel lines, so angle CBA and angle BCE are the same.
since a straight line is 180 degrees, we can solve for angle BCA by subtracting the other angles on the line from 180
180-80-50 = 50
since triangles have 180 degrees, we can solve for the last angle by subtracting the angles we already know from 180
180-80-50
two of the angles are the same, making this an isosceles triangle