The difference of the squares of two positive consecutive even integers is 12. find the integers. use the fact that, if x represents an even integer, then x+2 represents the next consecutive even integer.

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?