Hey could someone help me on this please.?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?