two airplane leave an airport at the same time. after one hour airplane a is 315 kilometers away from the airport airplane b is 405 kilometers away from the airport and the airplanes are 285 kilometers apart. what is the approximate angle between the flight paths of the airplanes

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?

What are the steps to solving the inequality 3b + 8 ≥ 14?

In the following diagram it is given that dec, ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2