Which one is bigger 1/2,2/4 or3/4

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a

Which of the following statements must be true about this diagram? check all that apply. x°, y°, z°, & w°