Jefferson High School is looking to expand its students parking lot by expanding the existing lot as shown below. The size of the new parking lot will be twice the size of the old parking lot. How many feet, x, was the old parking lot expanded by?

At a point on the ground 50 meters from the foot of a tree, the angle of elevation to the tree is 48°. find the height of the tree to the nearest meter.

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

Are the corresponding angles congruent? explain why or why not.