The measures of interior angles of a quadrilateral are in the ratio 3:4:5:6. The measure of the largest angle is
120o
90o
140o
130o
Let the angles be 3x,4x,5x,6x 3x + 4x + 5x + 6x = 360o 18x = 360o x = 20 Largest angle = 6x = 120o