SOLUTION: The sum of the four angle measures of any convex quadrilateral is
360 degrees. Suppose that a convex quadrilateral has angle measures of
90, 10y+7, and 3y-2 degrees. Write an e
Question 1083975: The sum of the four angle measures of any convex quadrilateral is
360 degrees. Suppose that a convex quadrilateral has angle measures of
90, 10y+7, and 3y-2 degrees. Write an expression for the degree measure of the fourth angle.