- Trapezoid The measures of three angles of a quadrilateral are 70, 125, and 89 degrees. Find the measure of the fourth one.​

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.