If 4 people share 1/3 of cake how much of the whole cake will each person get

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?

Select the two pairs of figures that are similar.

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x