Ming drew a triangle. the sum of the angles of the triangle is 180º. in ming’s triangle, b is twice the measure of a, and angle c is 5º greater than four times a. the system of equations below can be used to find the measure of the three angles, where a represents the measure of a, b represents the measure of b, and c represents the measure of c. a + b + c = 180 2a = b 4a + 5 = c which matrix represents the measure of each angle in ming’s triangle?