The height of sonji’s picture frame is 18 inches. part of the height is from the matting. sonji wants to know the height of a picture that will fit in the remaining height of the frame. if m represents the height of one side of the matting, which expression represents the height of the opening for the picture? 18/m 2m/18 18-2m m-18

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