The circle at the right represents a planet. The radius of the planet is about 7800 km. Find the distance d to the horizon that a person can see on a clear day from the following height h above the planet. h = 6 km
A person can see a distance of approximately km on a clear day from a height of 6 km above the given planet
(Round to the nearest tenth as needed.)

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