Which of the following is not a step necessary to create a triangle from three given angles? A.)Extend the two constructed rays until they intersect. Mark the intersection with a point.
B.)Draw a line segment.
C.)Use one of the given angle measures to construct the first angle at one of the endpoints of the line segment.
D.)Measure the length of each of the sides. Ensure that the side lengths are not equal.

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem