The sum of the angle measures of any triangle is
180
degrees. suppose that one angle in a triangle has a degree measure of
−10x2
and another has a degree measure of
+6x5
. write an expression for the degree measure of the third angle in the triangle.

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x