Mark casts a shadow that is 4 feet long . At the same time , a nearby tree casts shadow that is 20 feet long . If Mark is 6 feet tall , how tall is the tree?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?