let the fourth angle be x°
x = 360 - (90 + 10y+4 + 3y-2)
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+4, and 3y-2 degrees. Write an expression for the degree measure of the fourth angle.
2 answers
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