Triangle ABC is congruent to triangle XYZ. Angle A measures 50 degrees, angle B measure 2x+40 degrees, and angle Z measures 4x+8 degrees. Find the value of x.
angle Z is congruent to angle C, so angle C measures 4x+8 the sum of the three angles of a triangle is 180, so 50+2x+40+4x+8=180 6x++98=180 6x=82 x≈13.67
