PLEASE HELP: Prove the segments joining the midpoint of consecutive sides of an isosceles trapezoid form a rhombus. Use the Distance Formula to find DE, EF, FG, and GD

Does anyone know of a quizlet or something for edmentrum /plato algebra 1

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building