Posted by nickic on Wednesday, January 11, 2012 at 2:30pm.
What is the measure of x if the measure of angle ABD is represented by 4x, the measure of angle DBC is represented by 3x and the measure of angle ABC is 77 degrees?

geometry  Steve, Wednesday, January 11, 2012 at 5:38pm
assuming that D is between A and C, so that ABD + DBC = ABC, then
4x + 3x = 77
x = 11