posted by Anonymous .
Line m is parallel to line n. The measure of angle 3 is (2x− 3)°. The measure of angle 6 is (x + 39)°. What is the measure of angle 3?
10th grade -
Are they corresponding angles? If so, 2x-3=x+39. Are they supplementary angles? If so, 2x-3+x+39=180. Are they complementary angles? If so, 2x-3+x+39=90.