Ummi is setting up an aquarium in the shape shown here. She fills it partially with water. The volume of the water is 15 ft3. Then she adds more
water to the aquarium. Now the volume of the water is 22 1/2 ft3. How
much does the level of the water rise when Ummi adds more water?

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